Journal of Applied Psychology 2003, Vol. 88, No. 3, 444 – 458 Copyright 2003 by the American Psychological Association, Inc. 0021-9010/03/$12.00 DOI: 10.1037/0021-9010.88.3.444 To Justify or Excuse?: A Meta-Analytic Review of the Effects of Explanations John C. Shaw, Eric Wild, and Jason A. Colquitt University of Florida The authors used R. Folger and R. Cropanzano’s (1998, 2001) fairness theory to derive predictions about the effects of explanation provision and explanation adequacy on justice judgments and cooperation, retaliation, and withdrawal responses. The authors also used the theory to identify potential moderators of those effects, including the type of explanation (justification vs. excuse), outcome favorability, and study context. The authors’ predictions were tested by using meta-analyses of 54 independent samples. The results showed strong effects of explanations on both the justice and response variables. Moreover, explanations were more beneficial when they took the form of excuses rather than justifications, when they were given after unfavorable outcomes, and when they were given in contexts with instrumental, relational, and moral implications. Recent magazine and newspaper headlines have demonstrated the tendency for organizations to withhold adequate explanations. Consider the recent layoffs at Dell Computer, a company rated as one of Fortune magazine’s “100 Best Companies to Work For” (Levering & Moskowitz, 2000). Like many companies, Dell has reacted to the recent economic downturn with a series of job and pay cuts. A recent Time magazine article illustrated how one layoff event was handled (Cohen & Thomas, 2001). An e-mail instructed employees to attend a meeting at a nearby hotel, where they found a set of managers whom they had never met. The authors wrote: “The quarrel is a very pretty quarrel as it stands; we should only spoil it by trying to explain it.” —Richard Brinsley Sheridan from The Rivals, act IV, sc. iii “I wish he would explain his explanation.” —Lord Byron in Don Juan, Dedication, st. 2 Organizational life is rife with decisions that affect the interests of employees (Sitkin & Bies, 1993). For example, management might inform the organization of imminent layoffs, announce a merger with another firm, or institute a new drug-testing policy. Within the organization, a supervisor could approve a subordinate’s budget request, deny a request for a salary increase, or provide a lower-than-expected performance evaluation. Each of these events would seem to demand some sort of explanation, particularly when the decision was unfavorable or somehow controversial. Unfortunately, many organizations fail to supply explanations for key events or provide explanations that are so vague that they lack real information (Folger & Skarlicki, 2001; Smeltzer & Zener, 1992). In a recent review, Folger and Skarlicki (2001) attempted to explain “why tough times can lead to bad management” (p. 97). The authors argued that managers distance themselves from employees who receive bad news and fail to provide adequate explanations as a result. This distancing can occur for several reasons, including emotional distress or fear of being blamed for a negative outcome. It may also result from apprehension about triggering a wrongful termination or discrimination lawsuit. The bosses stuck to their script. The economy was bad. We can’t afford to keep you. So we’re not. Hand in your badges on the way out. There were no individual explanations for why these workers— out of a work force of 40,000 — had been picked. The members of the firing squad never introduced themselves. It was over in eight minutes. (p. 38) Even though it is logical for organizations to be concerned about revealing confidential information or triggering a damaging lawsuit, the failure to give an explanation— or the use of an inadequate one— could have adverse consequences. Academic research has linked the absence of adequate explanations to decreased levels of cooperation (e.g., task and citizenship behaviors; Colquitt, 2001; Konovsky & Cropanzano, 1991), increased levels of retaliation (e.g., litigation intentions, theft; Greenberg, 1990; Wanberg, Bunce, & Gavin, 1999), and increased levels of withdrawal (e.g., turnover intentions; Ball, Trevino, & Sims, 1993; Konovsky & Cropanzano, 1991). Much of this research has measured or manipulated variation in explanation provision, defined here as the extent to which an explanation is given for a decision. Other research has measured or manipulated variation in explanation adequacy, defined as the extent to which provided explanations are clear, reasonable, and detailed. The research cited previously has shown that adequate explanations can have beneficial effects, but the explanations literature remains unclear on three key issues. First, the size of explanation effects has been inconsistent; some studies have reported strong zero-order effects (e.g., Gilliland & Beckstein, 1996; Greenberg, John C. Shaw, Eric Wild, and Jason A. Colquitt, Department of Management, University of Florida. An earlier version of this work was presented in J. Greenberg and J. A. Colquitt (Chairs), Emerging contexts for organizational justice, a symposium conducted at the annual meeting of the Academy of Management, Denver, Colorado, August 2002. Correspondence concerning this article should be addressed to John C. Shaw, Department of Management, Warrington College of Business Administration, University of Florida, P.O. Box 117165, Gainesville, Florida 32611-7165. E-mail: john.shaw@cba.ufl.edu 444 THE EFFECTS OF EXPLANATIONS 1990), whereas others have reported nonsignificant ones (e.g., Gilliland, 1994; Schaubroeck, May, & Brown, 1994). Second, the merits of different types of explanations remain uncertain. Some studies have shown that excuses, where the authority shifts responsibility to some external cause, can have beneficial results (e.g., Crant & Bateman, 1993; Tata, 2000). Others have suggested that justifications, which admit responsibility while appealing to higher order concerns, are more effective (Bobocel & Farrell, 1996; Conlon & Murray, 1996). Finally, research on where and when to provide adequate explanations has proven inconclusive. Some studies have predicted that explanations are more beneficial in light of unfavorable outcomes, but the results have been inconsistent (e.g., Colquitt & Chertkoff, 2002; Gilliland, 1994; Ployhart, Ryan, & Bennett, 1999; Schaubroeck et al., 1994). Moreover, some studies have linked explanations to key outcomes in intuitively important contexts, such as layoffs or evaluation procedures (e.g., Cobb, Vest, & Hills, 1997; Wanberg et al., 1999), whereas others have shown only marginal effects in those settings (e.g., Mellor, 1992; Rousseau & Tijoriwala, 1999; Skarlicki, Ellard, & Kelln, 1998). The purpose of this study was to conduct a meta-analytic review of the explanations literature. In so doing, we structured our review around the propositions of fairness theory—a recently introduced integrative theory of organizational justice (Folger & Cropanzano, 1998, 2001). Fairness theory is particularly relevant to the study of explanations and can provide a useful framework for examining their effects. The theory was recently applied to the study of explanations by Gilliland, Groth, Baker, Dew, Polly, and Langdon (2001) and Colquitt and Chertkoff (2002). Both studies illustrated that fairness theory can be useful in deriving predictions regarding how, where, and when explanations should be most effective. In this article, we provide a brief overview of the explanations literature and discuss the basic components of fairness theory. We then use fairness theory to structure our specific hypotheses. Overview of the Explanations Literature Interest in explanations can be traced back to several early works in psychology, sociology, and philosophy (for a review, see Schlenker, 1980). According to Merriam-Webster’s Collegiate Dictionary (1998), an explanation is the act or process of “making something clear or understandable.” The term implies revealing the reason for, or the cause of, some event that is not immediately obvious or entirely known. Much of the scholarly interest in explanations may have been triggered by Scott and Lyman’s (1968) general purpose taxonomy of explanations. They distinguished between two types of explanations: excuses and justifications. Excuses are defined as explanations in which the decision maker admits that the act in question is unfavorable or inappropriate but denies full responsibility by citing some external cause or mitigating circumstance. For example, a soldier might admit to having killed other people, an immoral act, but explain that he or she was following orders and therefore was not fully responsible (Scott & Lyman, 1968). With justifications, the decision maker accepts full responsibility but denies that the act in question is inappropriate by pointing to the fulfillment of some superordinate goal. For example, a soldier might justify killing others by asserting that his or her side is fighting for the cause of freedom (Scott & Lyman, 1968). 445 Over the past three decades, researchers have further refined Scott and Lyman’s (1968) taxonomy (Bies, 1987b; Bies, 1989; Schlenker, 1980; Schönbach, 1990; Sitkin & Bies, 1993; Tedeschi & Reiss, 1981). Schlenker’s (1980) work further clarified the nature of both excuses and justifications by noting that excuses can point to either unforeseen consequences or extenuating circumstances, while justifications can draw on relevant social comparisons or higher order goals. Tedeschi and Reiss (1981) argued that excuses can point to a lack of intention, planning, capacity, or volition, and justifications can appeal to a higher authority, ideology, norms, or loyalties. Finally, work by Bies applied new terms to the excuse and justification concepts (Bies, 1987b; Bies, 1989; Sitkin & Bies, 1993). He termed excuses as causal accounts or mitigating accounts, while justifications were labeled ideological accounts or exonerating accounts. The literature on explanations is several decades old, but a chapter by Bies and Moag (1986) created a renewed interest in the concept. The authors characterized an allocation decision as a sequence of three events: (a) the following of a procedure; (b) an interaction between the allocator and allocation recipient(s), and (c) the allocation of the outcome. In so doing, Bies and Moag (1986) called attention to the interpersonal communication process, which had been neglected in previous research in the organizational justice literature. They also identified specific principles that promote fairness during the interaction phase. One of those principles is the provision of an adequate explanation. Since Bies and Moag’s (1986) discussion of explanations, scholars have used explanation provision as well as explanation adequacy to predict a variety of outcomes. Most commonly, explanations have been used to predict the perceived fairness of decision outcomes (i.e., distributive justice) and the perceived fairness of decision-making processes (i.e., procedural justice). This last outcome is particularly common, given that justice scholars have argued that explanations are a critical aspect of proper procedural enactment (Bies & Moag, 1986; Folger & Bies, 1989; Tyler & Bies, 1990). Some studies have shown that explanations improve such justice judgments (e.g., Bies & Shapiro, 1988; Gilliland & Beckstein, 1996; Greenberg, 1990; Shapiro, 1991), whereas others have yielded nonsignificant results (e.g., Colquitt & Chertkoff, 2002; Gilliland, 1994; Schaubroeck et al., 1994). Other studies have connected explanation provision and adequacy to more general responses to the decision-making event. For example, many scholars have examined the effects of explanations on cooperation responses. Tyler and Blader (2000) defined cooperation responses as those that “act to promote the goals of the group” (p. 3). Some of these responses may be in-role, such as task motivation, performance, or refusal to work for competing groups. Others may be extra-role, such as citizenship behavior or demonstration of particularly strong levels of loyalty. In contrast, other studies have focused on retaliation responses. Skarlicki and Folger (1997) defined retaliation responses as “adverse reactions to perceived unfairness by disgruntled employees toward their employer” (p. 434). Some of these responses may be very active responses, such as theft or complaints, whereas others may be passive, such as anger, blame, or stress. Some studies have shown that explanations promote cooperation or reduce retaliation (e.g., Colquitt, 2001; Gilliland, 1994; Greenberg, 1990; Konovsky & Folger, 1991; Schweiger & DeNisi, 1991), whereas others have failed to show significant effects (e.g., Bies, Shapiro, & Cum- SHAW, WILD, AND COLQUITT 446 mings, 1988; Brockner, DeWitt, Grover, & Reed, 1990; Colquitt & Chertkoff, 2002). Finally, still other scholars have linked explanations to withdrawal responses. Hulin (1991) defined withdrawal responses as “the set of behaviors that dissatisfied individuals enact to avoid the work situation” (p. 476). Most of the responses examined by past researchers comprise withdrawal from an existing organizational relationship (e.g., turnover intentions, absenteeism). However, other forms of withdrawal serve to prevent a relationship from even developing. For example, an individual may possess low application intentions regarding a job opening, or a customer may refuse to engage in further business with an organization. As with the outcomes discussed earlier, some studies have shown that explanations reduce withdrawal (e.g., Ball et al., 1993; Conlon & Murray, 1996); others have yielded nonsignificant results (e.g., Rousseau & Tijoriwala, 1999; Schaubroeck et al., 1994). Application of Fairness Theory Several theories, models, and frameworks can provide insights into what the effects of explanations should be and where and when they should be strongest or weakest. These include attribution theory (e.g., Wong & Weiner, 1981), work on the interactive effects of outcomes and procedures (e.g., Brockner & Wiesenfeld, 1996), and discussions of interactional justice (e.g., Bies & Moag, 1986). These works could help ground a subset of the predictions tested in our meta-analysis, but we are aware of only one theory that is relevant to the entire set. This theory, first introduced in Folger and Cropanzano (1998), is fairness theory. It is a reconceptualization of an earlier theory called referent cognitions theory (Folger, 1986a, 1986b, 1987, 1993). Fairness theory posits that the assignment of blame or accountability is a necessary step in reacting to decision-making events (Folger & Cropanzano, 1998, 2001). It therefore describes the process by which individuals go about forming perceptions of blame. In particular, the theory argues that individuals assign blame by comparing what happened to what might have been (Folger & Cropanzano, 1998, 2001). These mental simulations of other possible events are referred to as counterfactuals because they literally are contrary to the facts. There are two kinds of counterfactuals that interact to determine blame or accountability: could counterfactuals and should counterfactuals. Could counterfactuals compare what the decision maker did to what the decision maker could have done (Folger & Cropanzano, 1998, 2001). When people engage in this type of counterfactual thinking, they are trying to decide if there were other feasible alternatives within the discretion of the decision maker. According to fairness theory, if the individual determines that there were other feasible options over which the decision maker had control, then it is possible to assign blame (Folger & Cropanzano, 1998, 2001). The process of should counterfactual thinking forms the second half of the accountability judgment. Should counterfactuals compare what the decision maker did to what he or she should have done, from an ethical perspective (Folger & Cropanzano, 1998, 2001). This type of counterfactual therefore concerns the evaluation of good versus bad and right versus wrong. According to the theory, for an event to be unfair, it must violate the ethical standards to which people are expected to adhere (Folger & Cropanzano, 1998, 2001). Fairness theory also describes the process individuals use to judge the impact of the events that affect their lives. Specifically, would counterfactuals compare a person’s current state of wellbeing with mental simulations of other, perhaps more positive, states (Folger & Cropanzano, 1998, 2001). The theory argues that individuals will evaluate an event as having less negative impact when the current state of well-being is similar to other imagined states. Figure 1 illustrates how the three counterfactuals interact. The reciprocal arrows indicate that the formation of the counterfactuals can, theoretically, occur in any order (Folger & Cropanzano, 1998, 2001). The arrows also illustrate that all three counterfactuals must be activated for an individual to perceive an injustice. As an example, if a person sees an event as favorable (thereby failing to activate the would counterfactual), there is little reason to imagine what the decision maker could have or should have done differently. Without negative impact, there is no reason to consider blame (and vice versa). Fairness theory is uniquely suited to describing why explanations should have beneficial effects. From the perspective of the theory, explanations have the potential to deactivate both the could and the should counterfactuals (see Figure 1). The act of providing an excuse can demonstrate that some external cause or mitigating circumstances made the decision necessary or unavoidable. The more adequate the excuse is, the more the recipient will see the event in question as the only feasible option. Thus, excuse provision and adequacy can impact the could counterfactual, breaking the could–should chain that determines blame and accountability. Similarly, the act of providing a justification can demonstrate that the decision was appropriate in light of some superordinate goal. The more adequate the justification is, the more the recipient will see the event in question as ethically defensible. Thus, justification provision and adequacy affect the should counterfactual and again prevent an injustice from being perceived. The fact that justifications and excuses affect different mechanisms illustrates the utility of fairness theory in an explanations context. The theory is capable of illustrating exactly why two different forms of explanations can be beneficial. We, therefore, made the following predictions for explanation provision and explanation adequacy. Note that our hypotheses use the term beneficial effects for simplicity, meaning positive effects on procedural justice, distributive justice, and cooperation but negative effects on retaliation and withdrawal. Hypothesis 1: Explanation provision (whether excuse or justification) will have beneficial effects on procedural and distributive justice and cooperation, retaliation, and withdrawal responses. Hypothesis 2: Explanation adequacy (whether excuse or justification) will have beneficial effects on procedural and distributive justice and cooperation, retaliation, and withdrawal responses. Moderators of Explanation Effects Our first two hypotheses predicted beneficial main effects for explanation provision and adequacy, but it is clear that existing THE EFFECTS OF EXPLANATIONS Figure 1. 447 The three counterfactuals in fairness theory. studies have yielded inconsistent results. As noted earlier, some studies have yielded strong effects of explanations on justice judgments and other responses (e.g., Bies & Shapiro, 1988; Conlon & Murray, 1996; Gilliland & Beckstein, 1996; Greenberg, 1990; Shapiro, 1991), and other studies have not (e.g., Brockner et al., 1990; Colquitt & Chertkoff, 2002; Gilliland, 1994; Schaubroeck et al., 1994). What can explain these inconsistencies? One obvious possibility is sampling error, but it seems likely that some moderating variables could be altering the strength of explanation effects. The identification of such moderators is important practically and theoretically. Practically speaking, we noted that many organizations are often reluctant to offer explanations because of concerns over potential litigation or for the protection of confidential information. An examination of relevant moderators can show when that practice is likely to be most damaging. Theoretically speaking, moderators answer the critical “who-where-when” questions needed for sound theory development (Whetten, 1989). As Campbell (1990) notes, often the goal of a scientist should not be to test whether a hypothesis is supported or refuted but rather to determine the conditions under which a relationships holds. We, therefore, used fairness theory to identify specific moderators that could alter the strength of explanation effects. Each of the moderators is predicted to have some impact on the counterfactual mechanisms contained within the theory. These moderators took the form of substantive characteristics of the studies included in our meta-analysis and are summarized in the Appendix. Three specific moderators were examined in this review: the type of explanation, outcome favorability, and the context in which the decision-making event occurred. Type of Explanation Hypotheses 1 and 2 predicted beneficial effects for explanations, regardless of whether the explanations take the form of excuses or justifications. However, it is certainly important to examine whether one type of explanation is more effective than the other. As shown in the Appendix, several studies in the existing literature have examined one specific type of explanation— either excuses or justifications. Other studies have varied the type of explanation within the study by manipulating it across experimental conditions. Still other studies have used self-report measures of explanations without specifying excuses or justifications, which creates unmeasured variance in explanation type. For example, Brockner, Konovsky, Cooper-Schneider, Folger, Martin, and Bies (1994) used this survey item: “My supervisor carefully explained to me why I was laid off” (p. 401). Some participants could be recalling justifications while responding to this item, whereas others could be recalling excuses. Of the studies with classifiable explanations, which should yield stronger effects: those using excuses or those using justifications? The studies that manipulated both justifications and excuses within a single study can provide insights into this question. We are aware of six such studies. Three of those studies found excuses to have more beneficial effects on retaliation responses (assignment of blame, perceived need for disciplinary actions) and withdrawal SHAW, WILD, AND COLQUITT 448 responses (time taken to return for a subsequent experiment; Crant & Bateman, 1993; Gonzales, 1992; Tata, 2000). Two other studies have found opposite results, with justifications having more beneficial effects on justice perceptions and perceptions of explanation adequacy (Bobocel & Farrell, 1996; Conlon & Ross, 1997). The sixth study, by Gilliland et al. (2001), used fairness theory to frame its predictions. The authors termed excuses could reducing explanations and justifications should reducing explanations. Their first study included a should reducing explanation; the results failed to illustrate main effects on procedural justice, distributive justice, or cooperative responses (recommendation intentions). Their second study included a could reducing explanation, which did in fact improve procedural justice and cooperative responses (recommendation intentions). Their third study included both types of explanations, with the two yielding similar results. Although the studies cited previously are split on the issue, various aspects of Folger and Cropanzano’s (1998) discussion of fairness theory suggest stronger effects for excuses than justifications. After describing the could counterfactual in terms of feasible options and discretionary conduct, the authors described the should counterfactual as a “key basis for linking people’s discretionary conduct [italics added] with the consequences of that conduct” (p. 188). Similarly, they described should counterfactuals as “morally superior alternatives in the feasible set [italics added]” (p. 189). Although the authors argue that the counterfactuals may be considered in any order, their discussion implies that should issues will not even be explored if the could counterfactual is not activated. If should counterfactuals only consider feasible actions, then excuses should be more powerful than justifications. Specifically, excuses have the power to deactivate both the could counterfactual (by directly demonstrating a lack of feasible options) and the should counterfactual (by indirectly preventing even the consideration of moral standards). Justifications are incapable of deactivating both counterfactuals, because they admit— by definition— that other feasible options were possible (though less morally appropriate). Thus, the mechanisms discussed in fairness theory are uniquely capable of differentiating the power of excuse and justification effects. Finally, we should note that Schlenker’s (1980) discussion of explanations provides more support for the powerful effects of excuses. Schlenker (1980) emphasized the importance of being directly responsible for a decision event by writing, “responsibility is the adhesive that links an actor to an event and attaches an appropriate sanction to the actor who deserves it” (p. 126). When that adhesive is removed, no consideration of the justifiability of an event is necessary. We therefore predicted: Hypothesis 3: Explanations will have more beneficial effects when they take the form of excuses rather than justifications. Outcome Favorability In addition to type of explanation, it is important to examine whether outcome favorability alters the strength of explanation effects. As shown in the Appendix, several studies in the extant literature have used uniformly low outcome favorability (e.g., examining individuals rejected for a job or denied a resource request). Several other studies have varied outcome favorability. In these studies, outcome favorability was varied by manipulating it across experimental conditions or by using self-report measures to assess passive variance in it. It is important to note that no study has ever used uniformly high outcome favorability. Which studies should yield stronger effects: those using low outcome favorability or those using varying outcome favorability? The studies that manipulated outcome favorability can provide insights into this question. Several of those studies have illustrated interaction effects by showing stronger explanation effects in low outcome favorability conditions (e.g., Colquitt & Chertkoff, 2002; Folger & Martin, 1986; Gilliland, 1994; Gilliland & Beckstein, 1996; Ployhart et al., 1999; Schaubroeck et al., 1994). However, the effects have been inconsistent within the studies; significance is achieved for some outcomes but not for others. Even though the studies cited previously remain somewhat inconclusive, the fairness theory’s would counterfactual provides support for the interaction prediction. Recall that the would counterfactual is used to create perceptions of negative impact (Folger & Cropanzano, 1998, 2001). If this counterfactual is not activated, then no injustice can be perceived. In such cases, any knowledge gained from the explanation—whether it concerns feasibility or justifiability—would be of limited importance. In contrast, when individuals can easily envision better states of well-being, they should attend more to the information provided in the explanation, making explanation more powerful. Because studies that use low outcome favorability should be more likely to activate the would counterfactual, we made the following prediction: Hypothesis 4: Explanations will have more beneficial effects when outcome favorability is low than when outcome favorability varies. Context The studies on explanations have occurred in a variety of contexts. The Appendix provides information on what exactly is being explained within each of the studies included in our review. In some cases, the outcome being explained has been a selection decision or layoff decision (e.g., Brockner et al., 1990; Gilliland, 1994; Gilliland et al., 2001; Wanberg et al., 1999). Other studies have examined situations where bosses deny resource requests or take credit for subordinates’ ideas (e.g., Bies & Shapiro, 1987; Bobocel, Agar, Meyer, & Irving, 1998). Still others have studied explanations in the context of a pay cut, a merger, a change in job structure, or a relocation (Daly & Geyer, 1994; Greenberg, 1990; Rousseau & Tijoriwala, 1999; Schweiger & DeNisi, 1991). These widely varying contexts likely have implications for the would counterfactual in fairness theory. Specifically, it is likely that the perceived impact of decision events is higher in some contexts than in others, thereby increasing the importance of explanation provision and adequacy. If so, the key question becomes how to differentiate contexts according to their perceived impact. Unfortunately, there is no agreed upon framework or taxonomy for classifying contexts according to their impact. There are, however, frameworks that help explain why fairness matters in various situations. These frameworks include the instrumental model, the relational model, and the moral virtue model (for reviews, see Cropanzano, Byrne, Bobocel, & Rupp, 2001; Cropanzano, Rupp, Mohler, & Schminke, 2001). THE EFFECTS OF EXPLANATIONS The instrumental model argues that fair treatment matters to individuals because it conveys a sense of control over long-term economic outcomes (Lind & Tyler, 1988; Thibaut & Walker, 1975). According to this model, the provision of an adequate explanation should be more critical when the outcome has important economic consequences. As shown in the Appendix, several of the studies in the literature have indeed occurred in contexts that should possess instrumental impact. These include decisions that directly affect the hiring, compensation, and termination of the study respondents, as well as contexts involving resource requests and budget proposals. All of these contexts have direct economic consequences for the individual. Other studies have occurred in contexts that lack direct economic consequences, such as when coworkers are laid off, an individual receives negative criticism, or a smoking ban is initiated. The relational model argues that individuals value fairness, because it signals that they are valued members of their key relationships (Lind, 1995; Lind & Tyler, 1988; Tyler, 1999; Tyler & Lind, 1992). Proponents of the relational model have consistently argued that fairness matters more when individuals feel more connected to, and included in, organizational relationships (Lind, 1995, 2001; Tyler, 1994; Tyler, Degoey, & Smith, 1996). As Tyler (1999) summarized, “the strength of the social connection that people have to an organization—shapes the importance they place upon the quality of treatment they receive from organizational authorities” (p. 230). Elsewhere he notes, “The relational model also predicts that people will care more about how they are treated by others when they are dealing with people with whom they share a common group membership” (p. 232). These kinds of predictions have been supported in a number of studies (e.g., Holbrook & Kulik, 2001; Smith, Tyler, Huo, Ortiz, & Lind, 1998). As shown in the Appendix, several of the studies included in our review have occurred in contexts that should possess relational impact. That is, the studies have occurred in cases where the participants shared a common group membership with the authority in question. These include studies in organizations that examine pay cuts or freezes, disciplinary actions, important job changes, or layoffs of coworkers. They also include laboratory studies that create hypothetical group memberships through vignettes that discuss bosses taking credit for subordinates’ ideas, directors distributing funds inaccurately, and so on. Other studies have not occurred in contexts of shared group membership. For example, studies that examine hiring decisions possess little relational impact, because the person receiving the explanation is not an organizational member. Likewise, studies that survey respondents who have been laid off (often by approaching them during applications for unemployment benefits) occur in settings where shared membership no longer exists. Thus, these studies possess less relational impact, despite their obviously strong instrumental impact. Finally, the moral virtue model argues that fairness is valued simply because it is the right thing to do (Cropanzano et al., 2001; Folger, 2001). In other words, it has value beyond its instrumental or relational implications. According to this model, an adequate explanation should be more critical when the outcome has violated some moral standard. Several of the studies in the Appendix occurred in contexts that could be termed morally charged. These include cases where a boss takes credit for a subordinate’s idea, disrespectful criticism is given, drug testing is initiated, deception 449 occurs, a diversity initiative decides hiring, or an employee is sexually harassed. In these studies, explanations may or may not be needed to quell instrumental concerns, but they will be needed to deal with concerns about right and wrong. To summarize, the instrumental, relational, and moral virtue models can provide a theoretically grounded means of classifying the impact of various contexts. To return to the language of fairness theory, outcome favorability affects the level of impact, as captured by the would counterfactual. In contrast, we would argue that the study context affects the type of impact. As contexts take on more multifaceted forms of impact, by possessing instrumental, relational, and moral virtue implications, explanations should become more important. After all, the explanation is fulfilling multiple purposes in such cases. We therefore predicted: Hypothesis 5: Explanations will have more beneficial effects in contexts where the instrumental, relational, and moral virtue impact are high rather than low. Method We conducted a meta-analytic review of the explanations literature to test the hypotheses described previously. The methods for this review are described in the following discussion. Literature Search First, we conducted a literature search of both the PsycINFO and Web of Science databases for the years 1986 through 2001. We began our review in 1986 to coincide with the publishing of Bies and Moag (1986), which can be credited for increasing the visibility of explanations within the justice literature. We later conducted a second literature search containing other databases (ABI-Inform and ERIC) and less restrictive years (going back to 1968 when Scott and Lyman’s review was published). This second search was conducted to ensure that our original criteria had not omitted any relevant articles. The key words used in our literature searches were explanations, accounts, excuses, justifications, and interactional justice. We also conducted reference checks of several review articles in the explanations and justice literatures. One such review was Colquitt, Conlon, Wesson, Porter, and Ng’s (2001) meta-analysis of the organizational justice literature. That review examined the effects of informational justice (an aggregate of explanation provision and explanation adequacy) on a variety of outcomes, although no moderators were examined in that review. Our search yielded a total of 93 independent samples. Four of these were redundant with other samples and were therefore excluded (Ball, Trevino, & Sims, 1994; Bies & Shapiro, 1987, Study 3; Bies & Shapiro, 1988, Study 2; Daly, 1995). Twenty-seven samples were excluded because they did not contain any of the relationships contained in our hypotheses (e.g., Bobocel & Farrell, 1996; Crant & Bateman, 1993; Gaines, 1980; Giacalone & Rosenfeld, 1984; Gonzales, 1992; Pence, Pendleton, Dobbins, & Sgro, 1982; Shapiro, Buttner, & Barry, 1994; Tedeschi, Riordan, Gaes, & Kane, 1983). For example, Crant and Bateman (1993), Gonzales (1992), and Tedeschi et al. (1983) manipulated type of explanation but neither explanation provision nor explanation adequacy. Finally, eight samples were excluded because they could not yield codeable information (e.g., Bies, Martin, & Brockner, 1993; Greenberg, 1991). For example, Bies et al. (1993) reported regression results, but meta-analysis requires zero-order effect sizes (whether in the form of correlations, t or F statistics, or means and standard deviations). These exclusions left us with a total of 54 independent samples, as shown in the Appendix. SHAW, WILD, AND COLQUITT 450 Data Coding All three authors were present for the coding of all information from each article and had to reach consensus before any data point was entered. For each study, we coded the following: the zero-order correlation for the explanation relationship, the sample size, and the reliability of the explanation and dependent variables. We also coded information on the moderators examined in our hypotheses: the type of explanation used (justification vs. excuse); outcome favorability (varying vs. low); and the impact of the context in terms of the instrumental, relational, and moral virtue models (high vs. low). whether the study relied on a laboratory or field design and whether hypothetical vignettes were used. Neither methodological characteristic affected the size of the explanation correlation. The average correlation for the 25 laboratory studies was .31, as compared to .35 for the 29 field studies (t ⫽ .78, ns). Similarly, the average correlation for the 14 vignette studies was .34, as compared to .33 for the 40 nonvignette studies (t ⫽ .17, ns). Thus, the choice of research methods seems to have little effect on explanation correlations. Results Main Effects of Explanations Meta-Analytic Methods We followed the meta-analytic procedures described by Hunter and Schmidt (1990). We first computed a weighted average correlation using the study sample sizes. We then corrected these weighted average correlations for unreliability in both the independent and dependent variables. In instances where reliability estimates were not reported, we used the weighted average of all the reported reliabilities for that variable, which ranged from .84 to .88. Reliability data were reported most frequently for the five outcomes and for explanation adequacy, with the number of studies failing to report reliability ranging from 2 to 5. Reliability was reported less frequently for explanation provision, where 20 of the 30 studies manipulated provision. Such studies do not typically quantify the degree of random error in the manipulations. The meta-analysis results reported in our tables include both the uncorrected (r) and corrected (rc) correlation estimates. We also reported the 95% confidence interval for the uncorrected correlation. To provide an index of the variation in the corrected correlations across studies, we reported the standard deviation of the corrected correlation (SDrc). To assess the extent to which sampling error and unreliability are driving that variation, we calculated the percentage of variance explained by artifacts (abbreviated Vart). According to Hunter and Schmidt (1990), moderators likely exist in a relationship if artifacts fail to account for at least 75% of the variance in the correlations. However, this 75% rule has been amended by Mathieu and Zajac (1990) to be 60% in situations where there is no correction for range restriction. To test for moderators of explanation effects, we created a data set composed of all the correlations from all the studies, along with the relevant study characteristics. This data set was initially composed of 129 correlations (54 independent samples with an average of 2.39 correlations per sample). We transformed the correlations so that higher values indicated more beneficial effects, regardless of the dependent variable. We then aggregated that data set to the sample level by averaging across multiple correlations. The end result was a data set with 54 aggregate correlations and several dummy variables that were used to capture the moderator variables. It is important to note that this aggregate data set was only used to test our moderator hypotheses. We should also note that methodological characteristics of the studies were coded for potential use as control variables. Specifically, we coded Hypothesis 1 predicted that explanation provision would have beneficial effects on procedural and distributive justice as well as cooperation, retaliation, and withdrawal responses. Hypothesis 2 made the same predictions for explanation adequacy. As shown in Tables 1 and 2, both hypotheses received support. Explanation provision was significantly related to procedural justice (r ⫽ .28, rc ⫽ .32), distributive justice (r ⫽ .21, rc ⫽ .26), cooperation (r ⫽ .28, rc ⫽ .32), and retaliation (r ⫽ ⫺.33, rc ⫽ ⫺.39), although not to withdrawal (r ⫽ ⫺.10, rc ⫽ ⫺.12). Explanation adequacy was significantly related to all five outcomes (r ⫽ .49, rc ⫽ .54, for procedural justice; r ⫽ .40, rc ⫽ .45, for distributive justice; r ⫽ .20, rc ⫽ .24, for cooperation; r ⫽ ⫺.37, rc ⫽ ⫺.43, for retaliation; and r ⫽ ⫺.16, rc ⫽ ⫺.19, for withdrawal). Table 2 also breaks down the response variables into more specific categories. For the most part, differentiation between in-role versus extra-role cooperation (e.g., task performance vs. citizenship behaviors) did not alter the size of explanation effects, neither did differentiation between active versus passive retaliation (e.g., theft vs. blame). However, explanation adequacy did have a significantly stronger effect on withdrawal from potential relationships (r ⫽ ⫺.59, rc ⫽ ⫺.69) than existing relationships (r ⫽ ⫺.10, rc ⫽ ⫺.12), although the former is only based on k ⫽ 2. Moderators of Explanation Effects The results in Tables 1 and 2 suggested the existence of moderators. The variance accounted for by artifacts illustrated that sampling error and unreliability only accounted for an average of 25% of the variance in the meta-analytic correlations. This falls far below the 60% cutoff for the existence of moderators. We therefore examined the effects of our three moderators—type of explanation, outcome favorability, and context— on the size of the explanation correlations. Table 3 presents correlations between the moderator variables and the size of the explanation correlation Table 1 Relationships Between Explanations and Justice Perceptions Explanation provision Explanation adequacy Dependent variable r 95% CI rc SDrc k N Vart (%) r 95% CI rc SDrc k N Vart (%) Procedural justice Distributive justice .28 .21 .20, .35 .10, .32 .32 .26 .22 .29 24 18 4276 2414 13.16 12.03 .49 .40 .38, .60 .26, .54 .54 .45 .21 .27 12 10 3247 1985 5.44 7.04 Note. r ⫽ uncorrected weighted average correlation; 95% CI ⫽ 95% confidence interval around the uncorrected correlation; rc ⫽ corrected weighted average correlation; SDrc ⫽ standard deviation of the corrected correlation; k ⫽ number of samples; N ⫽ total sample size; Vart ⫽ percentage of variance in rc explained by study artifacts. Note. Dash in table indicates that data were not obtained or reported. r ⫽ uncorrected weighted average correlation; 95% CI ⫽ 95% confidence interval around the uncorrected correlation; rc ⫽ corrected weighted average correlation; SDrc ⫽ standard deviation of the corrected correlation; k ⫽ number of samples; N ⫽ total sample size; Vart ⫽ percentage of variance in rc explained by study artifacts. 15.63 14.18 22.02 36.49 56.37 — 8.94 37.80 6.29 3828 2050 1778 553 361 192 1829 1602 227 13 6 7 5 4 1 7 5 2 .16 .15 .15 .17 .15 .00 .23 .10 .28 .24 .18 .30 ⫺.43 ⫺.34 ⫺.58 ⫺.19 ⫺.12 ⫺.69 22 10 11 11 8 3 9 5 4 .28 .24 .28 ⫺.33 ⫺.32 ⫺.35 ⫺.10 ⫺.07 ⫺.14 Cooperation responses In-role Extra-role Retaliation responses Active Passive Withdrawal responses Existing relationship Potential relationship .21, .35 .13, .35 .19, .36 ⫺.44, ⫺.22 ⫺.46, ⫺.18 ⫺.44, ⫺.26 ⫺.20, .01 ⫺.16, .02 ⫺.35, .08 .32 .28 .31 ⫺.39 ⫺.39 ⫺.42 ⫺.12 ⫺.09 ⫺.17 .20 .21 .17 .21 .23 .07 .20 .12 .27 3479 1263 2045 2084 1717 367 1294 763 531 17.33 21.24 21.18 12.26 9.21 100.00 26.41 62.01 15.92 .20 .16 .26 ⫺.37 ⫺.30 ⫺.49 ⫺.16 ⫺.10 ⫺.59 .13, .28 .05, .27 .16, .35 ⫺.49, ⫺.25 ⫺.43, ⫺.18 ⫺.60, ⫺.38 ⫺.31, ⫺.01 ⫺.18, ⫺.02 ⫺.93, ⫺.25 SDrc rc 95% CI k SDrc rc 95% CI r Dependent variable Explanation provision Table 2 Relationships Between Explanations and Response Variables N Vart (%) r Explanation adequacy k N Vart (%) THE EFFECTS OF EXPLANATIONS 451 taken from the 54 independent samples. The first column of the correlation matrix shows that explanation correlations were lower for justifications than for excuses (r ⫽ ⫺.39) and when outcome favorability was varying rather than low (r ⫽ ⫺.31). Explanation correlations were higher when the context possessed relational impact (r ⫽ .30) and moral virtue impact (r ⫽ .41). These results offer some support for Hypotheses 3–5. However, it is important to note that there was moderate multicollinearity among the moderator variables (see Table 3). We therefore tested the moderator predictions using multiple regression, with the results shown in Table 4. It is important to note that the regression was based on 36 samples rather than 54, because 18 samples used self-report measures of explanations that were not classifiable as justifications or excuses. The unstandardized Bs in Table 4 can be interpreted as the mean difference in correlations explainable by the variable in question. Thus, Table 4 shows that explanation correlations were .14 lower for justifications than for excuses and were .09 lower for studies with varying outcome favorability rather than low ( p ⬍ .10). Table 4 also shows that the correlations were .14, .11, and .23 higher when the study context possessed instrumental, relational, and moral virtue forms of impact, respectively. Discussion In general, the results of our meta-analytic review demonstrate the predictive utility of fairness theory in the context of explanations. The mechanisms discussed in the theory were used to derive main effect predictions for explanation provision and adequacy, and both predictions received support. The specific counterfactuals described by the theory were able to predict the differential effects of excuses and justifications as well as the moderating effects of outcome favorability and study context. These results suggest that fairness theory, which had previously been used in only two studies (Colquitt & Chertkoff, 2002; Gilliland et al., 2001), has some utility as an integrative theory of reactions to decision events. We are aware of no other theory that could have provided grounding for all five of the hypotheses tested in our review. Overall Effects of Explanations In terms of our specific results, we predicted that explanation provision and adequacy would have beneficial effects on five specific outcomes: procedural and distributive justice and cooperation, retaliation, and withdrawal responses. Our results show that explanations were quite powerful, whether the dependent variable was a justice judgment or a more general response. Indeed, many of our results illustrate the practical significance of explanations. For example, if we convert our explanation adequacy-retaliation result into a binomial effect size display (see Rosenthal & Rosnow, 1991, pp. 281–286), we see that employees are 43% less likely to retaliate after a decision if an adequate explanation is provided. One interesting, though unexpected, pattern was that explanation adequacy tended to have more beneficial justice effects than explanation provision. This suggests that an inadequate explanation may be deemed more unfair than failure to provide one at all. A better understanding of adequacy is needed to understand such a result. Although many studies assess adequacy only in vague terms, some have operationalized adequacy in terms of length, clarity, or legitimacy (e.g., Greenberg, 1994; Mansour-Cole & SHAW, WILD, AND COLQUITT 452 Table 3 Correlations Between Size of Explanation Correlations and Moderator Variables Variable 1. 2. 3. 4. 5. 6. Size of explanation correlation Justification (vs. excuse) Varying (vs. low) outcome favorability High (vs. low) instrumental impact High (vs. low) relational impact High (vs. low) moral virtue impact M SD k 1 2 3 4 5 6 .33 .65 .39 .63 .57 .19 .19 .43 .49 .49 .50 .39 54 36 54 54 54 54 — ⫺.39* ⫺.31* .03 .30* .41* — .39* .36* ⫺.25 ⫺.36* — ⫺.02 ⫺.16 ⫺.19 — ⫺.27* ⫺.33* — .22 — Note. Dummy coding is as follows: justification ⫽ 1 vs. excuse ⫽ 0; varying outcome favorability ⫽ 1 vs. low ⫽ 0; high instrumental impact ⫽ 1 vs. low ⫽ 0; high relational impact ⫽ 1 vs. low ⫽ 0; high moral virtue impact ⫽ 1 vs. low ⫽ 0. * p ⬍ .05. This result may seem surprising to those who view excuses as somehow more self-serving and less forthright than justifications. However, the key is to realize that excuse has become a pejorative term in everyday language. As used in the academic literature, it means only that the content of the explanation focuses on a denial of responsibility or claim of mitigating circumstances. We suspect that framing our predictions in terms like causal accounts or mitigating accounts would make our results seem less surprising. In any event, future research should continue to compare excuses and justifications to assess where and when they function best. Such research would benefit from a more detailed process focus that explores the specific cognitions that are triggered when any explanation is received. For example, justifications may incite more cognitive resistance than excuses, because it may be easier to disagree with the merits of a superordinate goal than the reality of a mitigating circumstance. Alternatively, individuals may be biased against accepting that a negative outcome was justifiable due to self-serving or egocentric biases. A potentially useful tool for process-focused explanations research is verbal protocol analysis (Ericsson & Simon, 1980, Ericsson & Simon, 1993), where individuals are asked to “think out loud” in response to some stimulus. This kind of analysis could uncover the different cognitive processes that are prompted by excuses and justifications. Of course, the issue of adequacy again becomes critical. It may be that an illegitimate or insincere excuse is somehow more damaging than an illegitimate or insincere justification. After all, at least the latter admits some responsibility for the event, even if the specific reasons given are not convincing. Scott, 1998; Mellor, 1992). Similarly, Shapiro et al. (1994) showed reasonableness to be a key dimension of adequacy. It would seem that a cursory, unreasonable, or illegitimate explanation could be harmful in two respects. First, the benefits to the could or should counterfactuals in fairness theory would fail to materialize. Second, the unreasonable or illegitimate content might itself violate ethical standards, which would further amplify the should component of the theory. This second effect would not occur to the same extent in the absence of any explanation. To test such notions, future researchers should consider adequacy and provision together, so that inadequate explanations can be compared to no explanation conditions. Such research would benefit from tapping multiple dimensions of adequacy, including legitimacy, reasonableness, or sincerity. Boundary Conditions for Explanation Effects Even though the overall effects of explanations are impressive, they clearly vary across studies. In an attempt to explain these inconsistencies, we used fairness theory to identify moderator variables that could alter the strength of explanation effects. One such moderator was type of explanation. We reasoned that excuses are capable of deactivating both the could and should components of fairness theory. An adequate excuse shows that no other actions were feasible, which deactivates the could counterfactual. Moreover, because comparisons to ethical standards only occur for the feasible set, the should counterfactual can also be deactivated. Our results support this reasoning, as excuses had more beneficial effects than justifications. Table 4 Size of Explanation Correlations as a Function of Moderator Variables Regression step B  ⌬R2 R2 1. Justification (vs. excuse) Varying (vs. low) outcome favorability 2. High (vs. low) instrumental impact High (vs. low) relational impact High (vs. low) moral virtue impact ⫺.14† ⫺.09 .14† .11† .23† ⫺.30† ⫺.23 .35† .28† .49† .20* .20* .30* .50* Note. k ⫽ 36 samples after listwise deletion of missing data. Dummy coding is as follows: justification ⫽ 1 vs. excuse ⫽ 0; varying outcome favorability ⫽ 1 vs. low ⫽ 0; high instrumental impact ⫽ 1 vs. low ⫽ 0; high relational impact ⫽ 1 vs. low ⫽ 0; high moral virtue impact ⫽ 1 vs. low ⫽ 0. * p ⬍ .05, two-tailed. † p ⬍ .05, one-tailed. THE EFFECTS OF EXPLANATIONS In addition to explanation type, we examined the moderating role of outcome favorability. We predicted that explanations would be more beneficial in studies with unfavorable outcomes. After all, fairness theory argues that the activation of the would counterfactual is necessary for individuals to attend to could and should issues. Our results tend to support this reasoning, as explanations had stronger effects in studies using low outcome favorability. These results also offer additional support for the more general outcome Favorability ⫻ Process Fairness interaction seen in the larger organizational justice literature (Brockner & Wiesenfeld, 1996). It may be that individuals simply attend less to the explanation content in the absence of unfavorable outcomes, or it may be that the explanation actually creates conflicting reactions. The gesture of the explanation may be appreciated, but the content of it could cause individuals to react to the event less favorably. This would be especially likely if the positive outcome was found to be a function of the context, rather than the individuals’ merit. Finally, we also reasoned that explanations would become particularly critical in certain study contexts. The instrumental, relational, and moral virtue models were used to create a framework for gauging the impact of various contexts. Our results show that all three models can shed light on which contexts make explanations most impactful. Explanation effects were particularly strong when the context had instrumental (i.e., economic) implications, as in hiring, layoff, compensation, budget, and resource decisions. However, our results also suggest that explanations have value beyond their ability to shed light on future economic well-being. Specifically, explanations are more powerful when the recipient possesses high levels of inclusion or shared group membership. They are also more powerful when the explanation concerns a morally charged event, such as deception or controversial organizational decisions (e.g., drug testing, diversity initiatives). Thus, explanations can be important even for decisions with no economic consequences, because they can reaffirm the quality of a relationship or counteract a presumed ethical violation. Of course, process-focused research is needed to identify exactly what cognitions explanations trigger in different contexts. It may be that different types of explanations become more appropriate in different kinds of contexts. For example, individuals may be more resistant to justifications in morally charged contexts. Practical Implications Taken together, our results illustrate that the failure to give an explanation— or the use of an inadequate one— can lead to negative employee reactions. Many of these employee reactions, most notably retaliation and withdrawal, carry with them substantial costs to the employer. With that in mind, we return to the notion that tough times can lead to bad management (Folger & Skarlicki, 2001). Recall that Folger and Skarlicki (2001) argued that the delivery of bad news causes managers to distance themselves because of emotional distress, fear of being blamed, or concerns about making the situation worse. Managers may therefore believe that explaining a decision will only worsen the situation (as in the opening quote from The Rivals). They may also be worried about triggering a lawsuit based on some detail, which leads to an explanation that really explains nothing at all (as in the opening quote from Don Juan). 453 If tough times really do lead to these forms of bad management, then there is no better time to emphasize the importance of explanations. Newspaper headlines announce layoffs and pay cuts on an almost daily basis. For example, a recent front page article in USA Today cited a Towers Perrin survey showing that 53% of companies were likely to cut pay to reduce costs versus 37% before September 11th (Armour, 2002). The article went on to point out that explanations for the pay cuts have “never been more important,” otherwise employees may attribute their cut to a decrement in job performance (p. A1). Our results support the prescriptions made in that article. Managerial distancing will likely take a bad situation and make it worse, as employees react to the unexplained bad news with less cooperation, more retaliation, and more withdrawal. Similarly, worries about lawsuits may ironically cost more money than they save, given that litigation is a form of retaliation that should be decreased—not increased— by adequate explanations. Dunford and Devine (1998) made a similar argument in the context of wrongful termination, arguing that adequate explanations signify fair treatment and therefore lower the likelihood of legal action. In summary, we would echo earlier narrative reviews that argued that explanations should become a necessary ingredient in virtually any decision-making process (e.g., Bies & Moag, 1986; Folger & Bies, 1989; Tyler & Bies, 1990). In particular, explanations are vital in contexts with instrumental, relational, and moral virtue implications and when outcomes are unfavorable. Indeed, when one considers the practical benefits of explanations (e.g., a 43% reduced likelihood of retaliation) relative to their costs, it is difficult to envision an adequate excuse (or justification) for not offering them. References References marked with an asterisk indicate studies included in the meta-analysis. Armour, S. (2002, April 4). Many companies lower pay raises. USA Today, p. A1. *Ball, G. A., Trevino, L. K., & Sims, H. P., Jr. (1993). Justice and organizational punishment: Attitudinal outcomes of disciplinary events. Social Justice Research, 6, 39 – 67. Ball, G. A., Trevino, L. K., & Sims, H. P., Jr. (1994). Just and unjust punishment: Influences on subordinate performance and citizenship. Academy of Management Journal, 37, 299 –322. *Baron, R. A. (1990). Countering the effects of destructive criticism: The relative efficacy of four interventions. Journal of Applied Psychology, 75, 235–245. *Bies, R. J. (1987a). Beyond “voice”: The influence of decision-maker justification and sincerity on procedural fairness judgments. Representative Research in Social Psychology, 17, 3–14. Bies, R. J. (1987b). The predicament of injustice: The management of moral outrage. In L. L. Cummings & B. M. Staw (Eds.), Research in organizational behavior (Vol. 9, pp. 289 –319). Greenwich, CT: JAI Press. Bies, R. J. (1989). Managing conflict before it happens: The role of accounts. In M. A. Rahim (Ed.), Managing conflict: An interdisciplinary approach (pp. 83–91). New York: Praeger Publishers. Bies, R. J., Martin, C. L., & Brockner, J. (1993). Just laid off, but still a “good citizen?” Only if the process is fair. Employee Responsibilities & Rights Journal, 6, 227–238. Bies, R. J., & Moag, J. F. (1986). Interactional justice: Communication criteria of fairness. In R. J. Lewicki, B. H. Sheppard, & M. H. Bazerman 454 SHAW, WILD, AND COLQUITT (Eds.), Research on negotiations in organizations (Vol. 1, pp. 43–55). Greenwich, CT: JAI Press. *Bies, R. J., & Shapiro, D. L. (1987). Interactional fairness judgments: The influence of causal accounts. Social Justice Research, 1, 199 –218. *Bies, R. J., & Shapiro, D. L. (1988). Voice and justification: Their influence on procedural fairness judgments. Academy of Management Journal, 31, 676 – 685. *Bies, R. J., Shapiro, D. L., & Cummings, L. L. (1988). Causal accounts and managing organizational conflict: Is it enough to say it’s not my fault? Communication Research, 15, 381–399. *Bobocel, D. R., Agar, S. E., Meyer, J. P., & Irving, P. G. (1998). Managerial accounts and fairness perceptions in conflict resolution: Differentiating the effects of minimizing responsibility and providing justification. Basic and Applied Social Psychology, 2, 133–143. Bobocel, D. R., & Farrell, A. C. (1996). Sex-based promotion decisions and interactional fairness: Investigating the influence of managerial accounts. Journal of Applied Psychology, 81, 22–35. *Brockner, J., DeWitt, R. L., Grover, S., & Reed, T. (1990). When it is especially important to explain why: Factors affecting the relationship between managers’ explanations of a layoff and survivors’ reactions to the layoff. Journal of Experimental Social Psychology, 26, 389 – 407. *Brockner, J., Konovsky, M., Cooper-Schneider, R., Folger, R., Martin, C., & Bies, R. J. (1994). Interactive effects of procedural justice and outcome negativity on victims and survivors of job loss. Academy of Management Journal, 37, 397– 409. Brockner, J., & Wiesenfeld, B. M. (1996). An integrative framework for explaining reactions to decisions: Interactive effects of outcomes and procedures. Psychological Bulletin, 120, 189 –208. Byron, L. (1943). Don Juan: A satiric epic of modern life. New York: Heritage Press. Campbell, J. P. (1990). The role of theory in industrial and organizational psychology. In M. D. Dunnette & L. M. Hough (Eds.), Handbook of industrial and organizational psychology (Vol. 1, pp. 39 –74). Palo Alto, CA: Consulting Psychologists Press. *Cobb, A. T., Vest, M., & Hills, F. (1997). Who delivers justice? Source perceptions of procedural fairness. Journal of Applied Social Psychology, 27, 1021–1040. Cohen, A., & Thomas, C. B. (2001, April 16). An up-close look at how one company handles the delicate task of downsizing. Time, 38 – 40. *Colquitt, J. A. (2001). On the dimensionality of organizational justice: A construct validation of a measure. Journal of Applied Psychology, 8, 386 – 400. *Colquitt, J. A., & Chertkoff, J. M. (2002). Explaining injustice: The interactive effect of explanation and outcome on fairness perceptions and task motivation. Journal of Management, 28, 591– 610. Colquitt, J. A., Conlon, D. E., Wesson, M. J., Porter, C. O. L. H., & Ng, K. Y. (2001). Justice at the millennium: A meta-analytic review of 25 years of organizational justice research. Journal of Applied Psychology, 86, 425– 445. *Conlon, D. E., & Murray, N. M. (1996). Customer perceptions of corporate responses to product complaints: The role of explanations. Academy of Management Journal, 39, 1040 –1056. *Conlon, D. E., & Ross, W. H. (1997). Appearances do count: The effects of outcomes and explanations on disputant fairness judgments and supervisory evaluations. International Journal of Conflict Management, 8, 5–31. Crant, J. M., & Bateman, T. S. (1993). Assignment of credit and blame for performance outcomes. Academy of Management Journal, 36, 7–27. Cropanzano, R., Byrne, Z. S., Bobocel, D. R., & Rupp, D. E. (2001). Moral virtues, fairness heuristics, social entities, and other denizens of organizational justice. Journal of Vocational Behavior, 58, 164 –209. Cropanzano, R., Rupp, D. E., Mohler, C. J., & Schminke, M. (2001). Three roads to organizational justice. In G. R. Ferris (Ed.), Research in personnel and human resource management (pp. 1–113). New York: Elsevier Science. Daly, J. P. (1995). Explaining changes to employees: The influence of justifications and change outcomes on employees’ fairness judgments. Journal of Applied Behavioral Science, 31, 415– 428. *Daly, J. P., & Geyer, P. D. (1994). The role of fairness in implementing large-scale change: Employee evaluations of process and outcome in seven facility relocations. Journal of Organizational Behavior, 1, 623– 638. *Davidson, M., & Friedman, R. A. (1998). When excuses don’t work: The persistent injustice effect among Black managers. Administrative Science Quarterly, 43, 154 –183. Dunford, B. B., & Devine, D. J. (1998). Employment at-will and employee discharge: A justice perspective on legal action following termination. Personnel Psychology, 51, 903–934. Ericsson, K. A., & Simon, H. A. (1980). Verbal reports as data. Psychological Review, 87, 215–251. Ericsson, K. A., & Simon, H. A. (1993). Protocol analysis. Cambridge, MA: MIT Press. Folger, R. (1986a). A referent cognitions theory of relative deprivation. In J. M. Olson, C. P. Herman, & M. P. Zanna (Eds.), Relative deprivation and social comparison: The Ontario symposium (Vol. 4, pp. 33–55). Hillsdale, NJ: Erlbaum. Folger, R. (1986b). Rethinking equity theory: A referent cognitions model. In H. W. Bierhoff, R. L. Cohen, & J. Greenberg (Eds.), Justice in social relations (pp. 145–162). New York: Plenum. Folger, R. (1987). Reformulating the preconditions of resentment: A referent cognitions model. In J. C. Masters & W. P. Smith (Eds.), Social comparison, justice, and relative deprivation: Theoretical, empirical, and policy perspectives (pp. 183–215). Hillsdale, NJ: Erlbaum. Folger, R. (1993). Reactions to mistreatment at work. In K. Murnighan (Ed.), Social psychology in organizations: Advances in theory and research (pp. 161–183). Englewood Cliffs, NJ: Prentice Hall. Folger, R. (2001). Fairness as deonance. In S. Gilliland, D. Steiner, & D. Skarlicki (Eds.), Theoretical and cultural perspectives on organizational justice (pp. 3–34). Greenwich, CT: Information Age Publishing. Folger, R., & Bies, R. J. (1989). Managerial responsibilities and procedural justice. Employee Responsibilities & Rights Journal, 2, 79 – 89. Folger, R., & Cropanzano, R. (1998). Organizational justice and human resource management. Thousand Oaks, CA: Sage. Folger, R., & Cropanzano, R. (2001). Fairness theory: Justice as accountability. In J. Greenberg & R. Cropanzano (Eds.), Advances in organizational justice (pp. 1–55). Palo Alto, CA: Stanford Press. *Folger, R., & Martin, C. (1986). Relative deprivation and referent cognitions: Distributive and procedural justice effects. Journal of Experimental Social Psychology, 22, 531–546. Folger, R., & Skarlicki, D. P. (2001). Fairness as a dependent variable: Why tough times can lead to bad management. In R. Cropanzano (Ed.), Justice in the workplace: From theory to practice (pp. 97–118). Mahwah, NJ: Erlbaum. Gaines, J. H. (1980). Upward communication in industry: An experiment. Human Relations, 33, 929 –942. *Giacalone, R. A. (1988). The effect of administrative accounts and gender on the perception of leadership. Group & Organization Studies, 13, 195–207. Giacalone, R. A., & Rosenfeld, P. (1984). The effects of perceived planning and propriety on the effectiveness of leadership accounts. Social Behavior and Personality, 12, 217–224. *Gilliland, S. W. (1994). Effects of procedural and distributive justice on reactions to a selection system. Journal of Applied Psychology, 79, 691–701. *Gilliland, S. W., & Beckstein, B. A. (1996). Procedural and distributive justice in the editorial review process. Personnel Psychology, 49, 669 – 691. THE EFFECTS OF EXPLANATIONS *Gilliland, S. W., Groth, M., Baker, R. C., Dew, A. F., Polly, L. M., & Langdon, J. C. (2001). Improving applicants’ reactions to rejection letters: An application of fairness theory. Personnel Psychology, 54, 669 –703. Gonzales, M. H. (1992). A thousand pardons: The effectiveness of verbal remedial tactics during account episodes. Journal of Language & Social Psychology, 11, 133–151. *Greenberg, J. (1990). Employee theft as a reaction to underpayment inequity: The hidden cost of pay cuts. Journal of Applied Psychology, 75, 561–568. Greenberg, J. (1991). Using explanations to manage impressions of performance appraisal fairness. Employee Responsibilities & Rights Journal, 4, 51– 60. *Greenberg, J. (1993). Stealing in the name of justice: Informational and interpersonal moderators of theft reactions to underpayment inequity. Organizational Behavior and Human Decision Processes, 54, 81–103. *Greenberg, J. (1994). Using socially fair treatment to promote acceptance of a work site smoking ban. Journal of Applied Psychology, 79, 288 – 297. Holbrook, R. L., & Kulik, C. T. (2001). Customer perceptions of justice in service transactions: The effects of strong and weak ties. Journal of Organizational Behavior, 22, 743–759. *Horvath, M., Ryan, A. M., & Stierwalt, S. L. (2000). The influence of explanations for selection test use, outcome favorability, and selfefficacy on test-taker perceptions. Organizational Behavior & Human Decision Processes, 84, 310 –330. Hulin, C. L. (1991). Adaptation, persistence, and commitment in organizations. In M. D. Dunnette & L. M. Hough (Eds.), Handbook of industrial and organizational psychology (Vol. 2, pp. 445–506). Palo Alto, CA: Consulting Psychologists Press. Hunter, J. E., & Schmidt, F. L. (1990). Methods of meta-analysis: Correcting error and bias in research findings. Newberry Park, CA: Sage. *Jones, F. F., Scarpello, V., & Bergmann, T. (1999). Pay procedures— what makes them fair? Journal of Occupational & Organizational Psychology, 72, 129 –145. *Konovsky, M. A., & Cropanzano, R. (1991). Perceived fairness of employee drug testing as a predictor of employee attitudes and job performance. Journal of Applied Psychology, 76, 698 –707. *Konovsky, M. A., & Folger, R. (1991). The effects of procedures, social accounts, and benefits level on victims’ layoff reactions. Journal of Applied Social Psychology, 21, 630 – 650. Levering, R., & Moskowitz, M. (2000, January). The 100 best companies to work for. Fortune, 141, 82–110. Lind, E. A. (1995). Justice and authority relations in organizations. In R. S. Cropanzano & K. M. Kacmar (Eds.), Organizational politics, justice, and support: Managing the social climate of the workplace (pp. 83–96). Westport, CT: Quorum Books. Lind, E. A. (2001). Thinking critically about justice judgments. Journal of Vocational Behavior, 58, 220 –226. Lind, E. A., & Tyler, T. R. (1988). The social psychology of procedural justice. New York: Plenum Press. *Mansour-Cole, D. M., & Scott, S. G. (1998). Hearing it through the grapevine: The influence of source, leader-relations, and legitimacy on survivors’ fairness perceptions. Personnel Psychology, 51, 25–54. *Martin, C. L., Parsons, C. K., & Bennett, N. (1995). The influence of employee involvement program membership during downsizing: Attitudes toward the employer and the union. Journal of Management, 21, 879 – 890. Mathieu, J. E., & Zajac, D. M. (1990). A review and meta-analysis of the antecedents, correlates, and consequences of organizational commitment. Psychological Bulletin, 108, 172–194. *Mellor, S. (1992). The influence of layoff severity on postlayoff union commitment among survivors: The moderating effect of the perceived legitimacy of a layoff account. Personnel Psychology, 45, 579 – 600. 455 Merriam-Webster’s collegiate dictionary (10th ed.). (1998). Springfield, MA: Merriam-Webster. *Miles, J. A., & Klein, H. J. (1998). The fairness of assigning group members to tasks. Group & Organization Management, 23, 71–96. Pence, E. C., Pendleton, W. C., Dobbins, G. H., & Sgro, J. A. (1982). Effects of causal explanations and sex variables on recommendations for corrective actions following employee failure. Organizational Behavior and Human Performance, 29, 227–241. *Ployhart, R. E., Ryan, A. M., & Bennett, M. (1999). Explanations for selection decisions: Applicants’ reactions to informational and sensitivity features of explanations. Journal of Applied Psychology, 84, 87–106. *Richard, O. C., & Kirby, S. L. (1998). Women recruits’ perceptions of workforce diversity program selection decisions: A procedural justice examination. Journal of Applied Social Psychology, 28, 183–188. Rosenthal, R., & Rosnow, R. L. (1991). Essentials of behavioral research: Methods and data-analysis. New York: McGraw-Hill. *Rousseau, D. M., & Aquino, K. (1993). Fairness and implied contract obligations in job terminations: The role of remedies, social accounts, and procedural justice. Human Performance, 6, 135–149. *Rousseau, D. M., & Tijoriwala, S. A. (1999). What’s a good reason to change? Motivated reasoning and social accounts in promoting organizational change. Journal of Applied Psychology, 84, 514 –528. *Schaubroeck, J., May, D. R., & Brown, F. W. (1994). Procedural justice explanations and employee reactions to economic hardship: A field experiment. Journal of Applied Psychology, 79, 455– 460. Schlenker, B. R. (1980). Impression management: The self-concept, social identity, and interpersonal relations. Monterey, CA: Brooks/Cole Publishing Company. Schönbach, P. (1990). Account episodes: The management or escalation of conflict. Cambridge, England: Cambridge University Press. *Schweiger, D. M., & DeNisi, A. S. (1991). Communication with employees following a merger: A longitudinal field experiment. Academy of Management Journal, 34, 110 –135. Scott, M. B., & Lyman, S. M. (1968). Accounts. American Sociological Review, 33, 46 – 62. *Shapiro, D. L. (1991). The effects of explanations on negative reactions to deceit. Administrative Science Quarterly, 36, 614 – 630. Shapiro, D. L., Buttner, E. H., & Barry, B. (1994). Explanations: What factors enhance their perceived adequacy? Organizational Behavior & Human Decision Processes, 58, 346 –368. Sheridan, R. B. (1998). The rivals. Mineola, NY: Dover Publications. Sitkin, S. B., & Bies, R. J. (1993). Social accounts in conflict situations: Using explanations to manage conflict. Human Relations, 46, 349 –370. *Skarlicki, D. P., Ellard, J. H., & Kelln, B. R. C. (1998). Third-party perceptions of a layoff: Procedural, derogation, and retributive aspects of justice. Journal of Applied Psychology, 83, 119 –127. Skarlicki, D. P., & Folger, R. (1997). Retaliation in the workplace: The roles of distributive, procedural, and interactional justice. Journal of Applied Psychology, 82, 434 – 443. Smeltzer, L. R., & Zener, M. F. (1992). Development of a model for announcing major layoffs. Group & Organization Management, 17, 446 – 472. Smith, H. J., Tyler, T. R., Huo, Y. J., Ortiz, D., & Lind, E. A. (1998). The self-relevant implications of the group-value model: Group membership, self-worth, and procedural justice. Journal of Experimental Social Psychology, 34, 470 – 493. *Tata, J. (1998). The influence of gender on the use and effectiveness of managerial accounts. Group & Organization Management, 23, 267–288. *Tata, J. (2000). She said, he said. The influence of remedial accounts on third-party judgments of coworker sexual harassment. Journal of Management, 26, 1133–1156. Tedeschi, J. T., & Reiss, M. (1981). Verbal strategies in impression management. In C. Antaki (Ed.), The psychology of ordinary explanations of social behavior (pp. 271–309). London: Academic Press. 456 SHAW, WILD, AND COLQUITT Tedeschi, J. T., Riordan, C. A., Gaes, G. G., & Kane, T. (1983). Verbal accounts and attributions of social motives. Journal of Research in Personality, 17, 218 –225. Thibaut, J., & Walker, L. (1975). Procedural justice: A psychological analysis. Hillsdale, NJ: Erlbaum. *Tremblay, M., Sire, B., & Pelchat, A. (1998). A study of the determinants and of the impact of flexibility on employee benefit satisfaction. Human Relations, 51, 667– 688. Tyler, T. R. (1994). Psychological models of the justice motive: Antecedents of distributive and procedural justice. Journal of Personality and Social Psychology, 67, 850 – 863. Tyler, T. R. (1999). Why people cooperate with organizations: An identitybased perspective. In B. M. Staw & R. Sutton (Eds.), Research in organizational behavior (pp. 201–246). Greenwich, CT: JAI Press. Tyler, T. R., & Bies, R. J. (1990). Beyond formal procedures: The interpersonal context of procedural justice. In J. S. Carroll (Ed.), Applied social psychology and organizational settings (pp. 77–98). Hillsdale, NJ: Erlbaum. Tyler, T. R., & Blader, S. L. (2000). Cooperation in groups: Procedural justice, social identity, and behavioral engagement. Philadelphia, PA: Psychology Press. Tyler, T. R., Degoey, P., & Smith, H. (1996). Understanding why the justice of group procedures matters: A test of the psychological dynamics of the group-value model. Journal of Personality and Social Psychology, 70, 913–930. Tyler, T. R., & Lind, E. A. (1992). A relational model of authority in groups. In M. P. Zanna (Ed.), Advances in experimental social psychology (Vol. 25, pp. 115–191). San Diego, CA: Academic Press. *Wanberg, C. R., Bunce, L. W., & Gavin, M. B. (1999). Perceived fairness of layoffs among individuals who have been laid off: A longitudinal study. Personnel Psychology, 52, 59 – 84. *Weaver, G. R., & Conlon, D. E. (in press). Explaining facades of choice: Timing, justice effects, and behavioral outcomes. Journal of Applied Social Psychology. Whetten, D. A. (1989). What constitutes a theoretical contribution? Academy of Management Review, 14, 490 – 495. *Wiechmann, D., & Ryan, A. M. (2000, April). The effect of explanations for procedures on applicant reactions to cognitive ability and personality tests. In R. E. Ployhart (Chair), New directions for applicant reactions research. Symposium conducted at the 15th Annual Conference of the Society for Industrial and Organizational Psychology, New Orleans, LA. Wong, P. T. P., & Weiner, B. (1981). When people ask “why” questions, and the heuristics of attributional search. Journal of Personality and Social Psychology, 40, 650 – 663. THE EFFECTS OF EXPLANATIONS 457 Appendix Summary of Study Characteristics Impact of context Author string N Outcome being explained 1. Folger & Martin (1986) 160 2. Bies (1987a)a 3. Bies & Shapiro (1987; Study 1) 102 56 4. Bies & Shapiro (1987; Study 2) 87 5. Bies & Shapiro (1988; Study 1) 96 Granting (or not granting) opportunity to participate in second experiment Boss denying a resource request Hypothetical boss taking credit for subordinate’s idea Reception of a smaller than expected hypothetical budget Failure to grant second interview Boss denying a resource request Hypothetical director not distributing funds using correct criteria Layoffs of coworkers Receiving negative criticism 6. Bies et al. (1988) 121 7. Giacalone (1988) 135 8. Brockner et al. (1990) 9. Baron (1990; Study 1) 597 60 10. Greenberg (1990) 11. Konovsky & Cropanzano (1991) 12. Konovsky & Folger (1991) 13. Schweiger & DeNisi (1991) 353 147 14. Shapiro (1991) 192 15. Mellor (1992) 16. Ball et al. (1993)c 17. Greenberg (1993) 335 79 102 18. Rousseau & Aquino (1993) 121 19. Brockner et al. (1994; Study 1) 20. Brockner et al. (1994; Study 2) 21. Daly & Geyer (1994)d 218 150 171 22. Gilliland (1994) 270 23. Greenberg (1994) 732 24. Schaubroeck et al. (1994) 165 25. Martin et al. (1995) 26. Conlon & Murray (1996) 147 121 27. Gilliland & Beckstein (1996) 106 28. Cobb et al. (1997) 430 29. Conlon & Ross (1997) 234 30. Bobocel et al. (1998) 135 31. Davidson & Friedman (1998; Study 1) 32. Davidson & Friedman (1998; Study 2) 33. Davidson & Friedman (1998; Study 4) 113 195 19 97 241 Receiving a temporary pay cut The institution of a drugtesting policy Layoff of study respondents Merger with another Fortune 500 firm Being deceived (or not deceived) by a fellow participant, costing $10 Layoff of coworkers Receiving a disciplinary action Receiving the same (or less) compensation for experiment than was promised Hypothetical layoffs of study respondents Layoff of study respondents Layoff of coworkers Decision to relocate work site for either expansion or consolidation Being hired (or not hired) for a job Institution of a smoking ban Receiving a temporary pay freeze Layoff of study respondents Purchased product found to be unsatisfactory Getting a journal submission accepted or rejected Receiving an annual performance evaluation Imposition of a 3rd party negotiation settlement Boss denying a resource request Hypothetical boss taking credit for subordinate’s idea Hypothetical boss taking credit for subordinate’s idea Hypothetical boss taking credit for subordinate’s idea Explanation type Outcome favorability Instrumental Relational Moral virtue Excuse Varies (manip) Low Low Low Varies Excuse Low Low High Low High High Low High Justification Low High High Low Justification Low High Low Low Excuse Low High High Low Varies (manip) Low High High Low Varies Varies (manip) Justification Varies Low Low Low Low High High Low High Low Low High Low High High Low High Excuseb Varies Low Varies High High Low High Low Low Varies (manip) Varies (manip) High High High Excuse Varies Justification Low Low Varies (manip) Low High High High High Low Low Low High Justification Low High Low Low Varies Varies Varies Low Low Varies High Low Low Low High High Low Low Low Justification High Low Low Low High Low Justification Varies (manip) Varies (manip) Low High High Low Varies Varies Low Low High High Low Low Low Low Justification Varies High High Low Varies Varies High High Low Varies (manip) Justification Low High High Low Low High High Low Excuse Low Low High High Excuse Low Low High High Excuse Low Low High High Justification (Appendix continues) SHAW, WILD, AND COLQUITT 458 Appendix (continued) Impact of context Author string 34. Mansour-Cole & Scott (1998) 35. Miles & Klein (1998) 36. Richard & Kirby (1998) N Outcome being explained 217 48 Layoff of coworkers Being excused (or not excused) from participating in second phase of study Being hired for a hypothetical job based on a diversity initiative rather than merit Hypothetical layoff of study respondents Boss denying an unspecified request Receiving a benefits package The pay and benefits received at work Being hired (or not hired) for a hypothetical job Being admitted (or not admitted) to graduate school Implementation of team-based structure Layoff of study respondents Being hired (or not hired) for a hypothetical job Being sexually harassed 90 37. Skarlicki et al. (1998) 123 38. Tata (1998) 186 39. Tremblay et al. (1998) 40. Jones et al. (1999) 285 612 41. Ployhart et al. (1999; Study 1) 156 42. Ployhart et al. (1999; Study 2) 35 43. Rousseau & Tijoriwala (1999) 501 44. Wanberg et al. (1999) 45. Horvath et al. (2000) 108 186 46. Tata (2000) 351 47. Colquitt (2001; Study 1) 48. Colquitt (2001; Study 2) 301 337 49. Gilliland et al. (2001; Study 1) 120 50. Gilliland et al. (2001; Study 2) 51. Gilliland et al. (2001; Study 3) 32 380 52. Weaver & Conlon (in press) 110 53. Wiechmann & Ryan (2000; Study 2) 54. Colquitt & Chertkoff (2002) 201 168 Receiving a grade in a course The pay and promotions received at work Not being hired for a hypothetical job Not being hired for a job Not being hired for a hypothetical job Receiving (or not receiving) preferred task in a lab study Being hired (or not hired) for a hypothetical job Participants receiving (or not receiving) their requested group member Explanation type Outcome favorability Justification Justification Instrumental Relational Moral virtue Low Varies (manip) Low Low High Low Low Low Justification Low High Low High Varies Low High Low Low Varies Low Low High Low Varies Varies Varies Varies High High High High Low Low Justification Varies (manip) Varies (manip) Varies High Low Low High Low Low Low High Low Low Varies (manip) Low High High Low Low Low Low Low High High Varies Varies Low High Low High Low Low Justification Low High Low Low Excuse Varies (manip) Varies (manip) Justification Low Low High High Low Low Low Low Varies (manip) Varies (manip) Varies (manip) Low Low Low High Low Low Low Low Low Justification Justification Varies Justification Varies (manip) Varies Varies Justification Note. manip ⫽ varied by manipulating it across experimental conditions. Uses same sample as Bies and Shapiro’s (1987) Study 3 and Bies and Shapiro’s (1988) Study 2. b As reflected in the authors’ causal accounts variable. Referential account results were not coded. c Uses same sample as Ball et al. (1994). d Uses same sample as Daly (1995). a Received February 20, 2002 Revision received May 6, 2002 Accepted May 20, 2002 䡲