NADEOSA CONFERENCE PAPER: AUGUST 2006 AUTHOR: Gerda Mischke (Unisa) TITLE: Using corpus software to evaluate ODL materials: calibrating higher education study guides in terms of student-centredness Abstract The principle aim of this paper is to demonstrate that corpus software can be used to evaluate the student-centredness of open distance learning (ODL) study material. This aim is linked directly with the shift in South Africa from an objectivistic, contentcentred teaching approach towards an outcomes-based, student-centred one. In view of the educational context in which the research project is situated, some of the most relevant pedagogic principles underlying the notion of student-centredness are considered. A well motivated argument is then formulated about how these principles can be interpreted in linguistic terms and some of the most probable linguistic markers (characteristics) of student-centredness identified. These markers are then used to analyse and compare the discourse of six different distance education study guides developed at the University of South Africa. The analyses are done by using a corpus software program: WordSmith Tools 3.0. The research results obtained are then compared and their significance tested by means of a oneway Chi2 test. Conclusions drawn are that: the pedagogic principles underlying the notion of student-centredness can successfully be interpreted in linguistic terms; the linguistic markers of student-centredness can be used to electronically calibrate ODL study guides in terms of their relative student-centredness. INTRODUCTION The publication of the South African Government Education White Paper 3 (Republic of South Africa, 1995) lead to the transformation of the higher education system in 1 South Africa. This transformation involved, amongst other matters, the adoption of a new teaching policy, which proposes a shift from an objectivistic, content-centred teaching approach towards an outcomes-based, student- or learner-centred approach. The association of an outcomes-based approach to teaching with student centredness is affirmed by the South African Government Gazette (Republic of South Africa, 1997), which states that an outcomes-based approach to teaching >goes beyond ensuring that all learners achieve the set outcomes. It involves them as participants in curriculum and learning, responds to their learning styles and cultures, and builds on their life experiences and needs=. In responding to this change, lecturers at the University of South Africa (Unisa), the largest distance education institution in the country, had to align their print based teaching strategies with this new teaching paradigm. However, whilst the shift from an objectivistic, content-centred teaching approach towards an outcomes-based, student-centred one has become to be acknowledged as the official teaching policy at Unisa, few mechanisms exist to determine to what extent Unisa has indeed aligned its teaching strategies with the Government=s proposed teaching paradigm. This problem should be viewed against the reality that, whilst there is a drive within Unisa to promote student-centred learning through multimedia packages which include online learning, CDs, videos, and digital video drives, the vast majority of Unisa students come from disadvantaged communities with no or little access to multimedia facilities. The result is that the printed teaching text or study guide is still the most influential and often the only medium through which teaching takes place at the university. The implication of the largely print-based mode of teaching at Unisa is that any attempt to determine in a stable and reliable way whether there is an increased move 2 towards student-centredness at Unisa, has to involve at least three different steps. Firstly, the pedagogical principles underlying the notion of student-centredness have to be considered; secondly, these principles have to be interpreted in linguistic terms in order to be able to evaluate the student-centredness of print-based study material; thirdly, a mechanism has to be developed to compare print-based texts objectively in terms of their linguistic features. The aim of this paper is to address these needs. This aim is elaborated upon below. AIM The principle aim of this paper is to demonstrate that corpus software can be used to evaluate the student-centredness of open distance learning (ODL) study material. This principle aim rests upon the secondary aims to: highlight some of the pedagogical principles underlying the notion of studentcentredness; interpret the notion of student-centredness in linguistic terms; develop an analytic framework that allows for a corpus-based exploration of the principles underlying the notion of student-centredness; Before I address the principle aim, I first explore the secondary aims below. SOME PEDAGOGICAL VIEWS UNDERLYING THE NOTION OF STUDENTCENTREDNESS A brief exploration of some of the views underlying student-centredness reveals that the notion of student-centred derives from an educational shift in focus from the central importance of teaching towards the central importance 3 of learning. Therefore, transformational educationists advocate a move away from didactic teaching methods, and towards active student participation in teaching and learning processes. Pedagogical principles supporting a student-centred approach to teaching and learning are captured in transformative learning theory (e.g. Cranton, 1994, 1997, 2000; Mezirow, 1991, 1994, 1995, 1996, 2000) and tenets such as: constructivism (e.g. Bruner, 1960, 1966, 1973, 1986, 1990, 1996; Vygotsky, 1962, 1978) and wholeperson learning (e.g. Dirkx, 2001; Heron, 1992, 1996; Taylor, 2001; Yorks and Kasl, 2002). Mezirow (1991, 1995) discusses the concept of transformative learning by pointing to three main instigators of transformation: disorienting experiences, reflection, and affect. Mezirow (1991:94) points out that transformation >begins when we encounter experiences, often in an emotionally charged situation, that fail to fit our expectations=. On the other hand, reflection leads to transformation as it >is involved in problem solving, problem posing and transformation of meaning schemes and perspectives= (Mezirow, 1991:117). He maintains that the transformative power of affect is demonstrated by psychological assumptions arising >from anxiety generated by parental prohibitions learned under traumatic circumstances in childhood= (Mezirow, 1991:144). Mezirow (1996:162B166) also contends that transformative learning is based on action-orientated experience, which is developed in a communicative way through negotiated meaning making. Transformative principles of learning also underpin a constructivist approach to learning. In considering some of the views advanced in constructivism, Bruner (1960, 1966, 1973, 1986, 1990, 1996) stresses that learning is an active process in which students construct new ideas or concepts, which result from their current and 4 past knowledge and worldview. When taken from the point of view of the teacher or instructor, constructivism implies that the instructor should guide students to discover principles by themselves within the context of a given situation. The instructor and student should interactively engage in dialogue and the task of the instructor is to appreciatively present information to be learned in a format appropriate to the learner's current state of understanding. As a result, the curriculum should be organised in such a fashion that the student continually builds upon previous experiences in a negotiated fashion (Bruner, 1996). The theory underlying whole-person learning advocates that cognition derives from the reality that emotion forms the foundation upon which all learning rests (Dirkx, 2001; Heron, 1992, 1996; Taylor, 2001; Yorks and Kasl, 2002). Heron (1992) explains that the human psyche or mind has four primary modes of functioning that are all simultaneously alert during the process of learning. For effective learning to occur, all four modes of functioning (also called modes of psyche), namely the affective, imaginal, conceptual and practical are essential. Each mode includes two processes: ‘The affective mode embraces feeling and emotion [...] The imaginal mode comprises intuition and imagery [...] The conceptual mode includes reflection and discrimination. And the practical mode involves intention and action’ (Heron, 1992: 14-15). Learning is thus optimally facilitated when students are involved in an emotional, imaginal and practical way in the learning process. Common themes flowing from transformative theory, constructivism and wholeperson learning involve: the development of experience by being emotionally and practically involved in certain tasks (e.g. Bruner, 1960, 1966, 1973, 1986, 1990, 1996; Honebein, 1996; Taylor, 1998, 2001); the notion of critical reflection through 5 guided dialogue (e.g. Taylor, 1998; 2001); an emphasis on the interrelationship between emotion (attitude) and cognition (e.g. Dirkx, 2001; Heron, 1992; Yorks and Kasl, 2002); and the self-authoring of emotion and experience (Pizzolato, 2003) . Of particular interest is that notions such as involvement, interaction, attitude and the negotiation of attitude play such a central role in pedagogical views on studentcentredness. In fact, these notions receive so much attention that it can be accepted that for a text to be student centred it should be involved, interactive, attitudinal and sensitive to the negotiation of attitude. As a result of the centrality of these notions to the theories underlying a studentcentred approach to teaching, I consider involvement, interaction, attitude and the facilitation of attitude to be of paramount importance in creating a rich learning environment. As a result, I have argued that a move towards student-centredness in study guides will be noticeable through discourse that is involved, interactive, attitudinal and sensitive to the negotiation of attitude. However, in order to determine how ‘involved’ and interactional print-based distance education study guides are and how the attitude expressed is facilitated or negotiated, I had to determine what the linguistic depiction of these notions are. That is, I had to determine what the linguistic characteristics are of texts that are ‘involved’, interactive and sensitive to the negotiation of attitude. I present these insights below. LINGUISTIC FEATURES REPRESENTING THE NOTION OF STUDENTCENTREDNESS 6 In seeking a linguistic interpretation of the involvement, interaction, attitude and the negotiation of attitude, I consider the findings of linguists who have analysed involved, interactive and attitudinal discourses. In exploring how the social presence of discourse participants is signalled linguistically, scholars such as Chafe (1982, 1985, 1986), Poynton (1985), Stubbs (1982) and Tannen (1982, 1985) compared spoken and written language. In this regard, Chafe observes the following differences: ‘[...] speakers are usually in faceto-face interaction with their interlocutors, whereas writers are usually isolated from their audiences, both spatially and temporally. The result is an opposition that I have referred to as the involvement of spoken language versus the detachment of written’ (Chafe, 1985:116). Chafe (1985:116) thus uses the term involvement to refer to the >humanised= nature of conversations and concludes that because written texts lack this manifestation, they show signs of detachment rather than involvement. Poynton (1985) explores the difference between spoken and written language and in similar fashion to Chafe (1985) she also reaches the conclusion that there are particular language features whereby speakers acknowledge the social presence of their discourse participants in the discourse. Linguists are in agreement that such language features include reference to the self and the other, expressions of emotion as well as personal opinions and attitudes. Labov (1972:378), for instance, observes that in discourse the social presence of discourse participants is signified through intensifiers (e.g. all, completely, everything), negatives (e.g. I do not agree), modals (e.g. you might be right), questions (e.g. do you agree?), attributive adjectives (e.g. it is true) and clauses introduced by subordinators (e.g. if it is true ...). Stubbs (1986:1) refers to such features as language which is used >to express personal beliefs and adopt positions, to express agreement and disagreement with 7 others, to make personal and social allegiances, contracts and commitments, or alternatively, to disassociate the speaker from points of view and to remain vague or uncommitted=. He classifies such language features as modal grammar or point of view, and observes that they include the meanings depicted by vague language, ways to be explicit, the modal meaning of private verbs and by questions. Instead of looking at how conversations differ from written texts, scholars such as Brown and Levinson (1987), Bybee and Fleischmann (1995), Chafe and Nichols (1986), Drubig (2001), Halliday (1970) and Palmer (1986), look at the way in which the >involvement= of interlocutors is signified in spoken as well as written discourse from a semantic point of view. The quoted scholars indicate that speakers or writers signal their own, as well as their addressees= social presence (or >involvement=) in a discourse also by indicating to their addressees the truth value of their propositions. The language features they associate with truth evaluation include expressive vocabulary (e.g. really, indeed, not at all), exaggerations (e.g. totally, completely, extremely), modal grammar (e.g. may, might, perhaps), and vague language (e.g. sort of, almost, more or less). In considering the views of the scholars referred to above, Biber (1988) explores the notion of >involvement= by analysing spoken and written discourses of many functional types. A major value of Biber=s (1988) findings to the present paper is that he identified 23 features Biber (1988) which tend to group together in texts that are involved in nature (Biber, 1988:105). In expanding on the notion of >involvement=, Biber remarks: ‘Involvement refers to those linguistic features which reflect the fact that speaker and listener typically interact with one another, while writer and reader typically do not. Due to this interaction, speakers often make direct reference to the listener (by use of second person pronouns, questions, imperatives, etc.), and they 8 are typically concerned with the expression of their own thoughts and feelings (e.g., marked by use of first person pronouns, affective forms such as emphatics and amplifiers, and cognitive verbs such as think and feel) [...]’ (Biber, 1988:43). As can be seen from this remark, Biber=s findings confirm the association that is drawn in the present study between >involvement= and >social presence=. As a result, my point of departure is that a linguistic exploration of student-centredness implicitly comprises an exploration of the features associated with textual >involvement=. In this regard, the features that Biber (1988) associates with >involvement= serve as a benchmark. While scholars such as those mentioned above focus largely on >involvement= from a lexical perspective, scholars such as Martin (1995, 1997, 2000, 2002, 2004) and White (1998, 2000, 2002, 2003) associate such attitudinal language with the notion of interpersonal negotiation. They suggest that speakers or writers signal their own as well as their addressees= social presence or >involvement= in a discourse by using evaluative or attitudinal language. Such attitudinal language relates not only to the continual evaluation of the truth value of their statements, but also to the indication of how things affect them emotionally. Such emotions relate to the feelings they express (e.g. I fear, I hope), how appealing or unappealing they find things (e.g. a beautiful flower, a terrible mistake), and how moral or immoral they regard people to be (e.g. he is a criminal, she is a real saint). Their point of departure is that >emotions, judgements, and values, are sites around which negotiation might take place= (Martin, 2000:145). Of concern are all language features that are affective and attitudinal. 9 If we consider against this background the fundamental premise of transformative theory, that: (a) learning is the product of shifts occurring in a student=s world-view when challenged emotionally through interactive discourse (Mezirow, 1996) and: (b) the affective mode of the human psyche provides the basis upon which all learning rests (Heron, 1992; Kilgore, 2001; Yorks and Kasl, 2002), then it can be assumed that in student-centred texts, ‘involved’, interactive and affective or attitudinal language should be used more often in student-centred stuffy guides than in contentcentred ones. Biber’s (1988) research and the research of Martin (1995, 1997, 2000, 2002, 2004) and White (1998, 2000, 2002, 2003) is important in this regard. The list of 23 features Biber associates with ‘involvement’ includes features associated by Martin and White with interaction and the expression and negotiation of attitude. Therefore, the analytic framework I used to calibrate Unisa study guides with regard to their relative student-centredness is largely based on the features Biber (1988) associates positively with >involvement=. Below I discuss this framework in more detail. ANALYTICAL FRAMEWORK AND DATA CORPUS Above I made an association between the pedagogical notion of student-centredness and the linguistic representation of >involvement=, interaction, attitude and the negotiation of attitude. I also mentioned that the hypothesis I present in this paper is that a move from content-centredness towards student-centredness shows up in texts through the way in which such texts display linguistic features associated with >involvement=, interaction, attitude and the negotiation of attitude. Therefore, I calibrated Unisa study guides with regard to their relative student-centredness by doing electronic counts of the number of features each guide has that are positively 10 associated by Biber (1988) with ‘involvement’ and by Martin (1995, 1997, 2000, 2002, 2004) and White (1998, 2000, 2002, 2003) with attitude. Such features include: private verbs ─ that is, verbs used for the expression of intellectual states (e.g. learn, mean, reflect, think), nonobservable intellectual acts (e.g. agree, decide, determine, discover, find), sensory experiences (e.g. hear, see) and affective or emotional states (e.g. hope, fear, feel), contractions (contractions of the verb ‘to be’, including: ‘d, ‘ll, ‘m, ‘re, ‘s, ‘ve, n’t, it’s), second person pronouns (you, your, yourself, yourselves, and all contracted forms), analytic negation (all instances of not and contractions with *n’t), demonstrative pronouns (that, these, this and those), general emphatics (for sure, a lot, such a, such as, just, really, most, and more), first person pronouns (I, me, we, us, my, our, myself, ourselves and all contracted forms), pronoun it, causative subordination (because), discourse particles (now, anyhow, anyway, and anyways), indefinite pronouns (e.g. anybody, anyone, anything, everybody, everyone, everything, general hedges (about, something like, more or less, almost, maybe, sort of, and kind of), amplifiers (e.g. absolutely, badly, bitterly, completely, deeply, enormously, entirely, extremely), wh-questions (what, when, where, which, who, whose, why and how), possibility modals (can, could, may, and might), 11 adverbs (e.g. afterwards, again, earlier, aboard, above, and all adverbs ending on –ly), conditional subordination (if and unless). I used these features to calibrate six Unisa study guides with regard to their relative student-centredness. The details of the guides analysed are provided below ─ based on their copyright dates, a differentiation is made between the guides of a particular department by referring to the >old= as opposed to the >new= guide. In this regard the >old= guide is the one developed before a student-centred approach to teaching was adopted at Unisa while the >new= guide is the guide developed after the adoption of such an approach. Accordingly, the old guide is assumed to be more content centred than the new one, which is assumed to be more student centred: Departments of Industrial Psychology (a) Organisational and Career Psychology. Only study guide for IPS202-D. Copyright: 1984, revised edition: 1991 (old Industrial Psychology study guide). (b) Career Psychology. Only study guide for IOP303-V. Copyright: 2002 (new Industrial Psychology study guide). For convenience, I abbreviate the course codes of these two guides in my discussions. The old guide (IPS202-D) is referred to as the IPS guide and the new guide (IOP303-V) as the IOP guide. Department of Anthropology, archaeology, geography and environmental studies 12 (a) Socio-Cultural Anthropology. Only study guide for SKA202-4. Copyright 1992 (old Anthropology study guide). (b) Socio-Cultural Solutions to Problems of Human Adaptation. Only Study Guide for APY202-J. Copyright: 2003 (new Anthropology study guide). When necessary I refer to the old guide (SKA202-4) as the SKA guide and to the new guide (APY202-Y) as the APY guide. Department of Psychology (a) Social Psychology. Only study guide for PSY313-D. Copyright: 1995 (old Psychology study guide). (b) Re-Imagining Community. Only study guide for PYC205-A. Copyright: 2001 (new Psychology study guide). The course codes of these two guides are abbreviated to PSY for the old guide (PSY313-D) and PYC (PYC205-A) in tables and discussions. I traced the ‘involvement’ features of these guides by using the WordList program of WordSmith Tools 3.0. WordSmith Tools is an integrated suite of programs for analysing a large corpus of texts. It consists of word listing and word concordancing facilities. The WordList tool generates lists of all the words of a particular text and indicates the frequency of occurrence of each word. The following word list illustrates how the programme orders all the words in a text alphabetically, numbers each word (N) according to its position in the list and indicates the real number of instances (Freq) of each word in the text: 13 WordList extract N Word Freq. 1522 XENOPHOBIA 2 1523 YEARS 9 1524 YES 8 1525 YET 9 1526 YOU 551 1527 YOU'D 2 1528 YOU'LL 2 1529 YOU'RE 14 1530 YOU'VE 7 1531 YOUR 386 1532 YOURS 3 1533 YOURSELF 21 In considering the words associated with student-centredness in the analysed text, words were traced in lists such as these by means of the >search= function of the WordList program. This research function operates in similar fashion to the >find= function of word processing programs. By giving a search command, the WordList Tool searches through all the words in the word list and displays the word searched and the frequency with which it occurs in a given text. These counts were then added together to get the total score for a particular feature. The data obtained quantitatively from the old and the new guides was then compared and the significance of the results was tested by means of a one-way Chi2 test. Chi2 analysis is used to compare two or more frequencies to investigate the probability that their values depart from what would be expected by chance alone. 14 As the mere discovery of a discrepancy is not necessarily significant, the magnitude of the value of Chi2 is considered. The higher the Chi2 value, the more significant the discrepancy. Discrepancy levels were taken as significant when the Chi2 test suggested a 0.05 possibility of error (p < 0.05). Discrepancy levels were, on the other hand, taken as very significant when the Chi2 test suggested a 0.01 possibility of error (p < 0.01). The research results obtained are reported below. RESEARCH FINDINGS I have mentioned that the principles underlying Transformative Theory, constructivism, whole-person learning and cooperative inquiry suggest that learning is best facilitated when the social presence of students is acknowledged in the knowledge construction process. In this regard, social presence as a subjective quality of a communication medium signalled by features such as interaction, ‘involvement’, the expression and negotiation of attitude. As a result, my point of departure is that a move from content-centredness towards student-centredness shows up most clearly in distance education study guides through the way in which such texts display linguistic features associated with >involvement=, interaction, attitude and the negotiation of attitude Attached to this paper are four Excel spreadsheets displaying the research findings. Tables 1, 2, and 3 show the research results obtained by testing this hypothesis. Table 4 shows the research findings obtained by comparing the total figures for all the old and new guides. The data presented in the collective tables illustrate that the counts for the various features show that the new guides have very significantly higher counts for linguistic features associated with student-centredness. 15 Table 4 shows that the most distinguishing features between the old and new guides are very significantly higher counts for: private verbs, contractions, second person pronouns, general emphatics, first person pronouns, amplifiers, WH questions, possibility modals and adverbs. In contrast, the old guides have very significantly higher counts for we used with exclusive reference. Below I highlight some matters of particular significance. Very significant high counts for the private verbs: think, feel, find, consider and reflect occur in the new study guides. These verbs very often collocate with personal pronouns, particularly second person pronouns or first person singular pronouns referring to someone with whom the student can associate. The preference for these particular collocations fits nicely into the principles advanced in transformative learning theory. For instance, examples such as: I think I am an important link ...; you might have felt a bit exposed; Did you find it easy? ... if you consider the above ...; and ... you are in a position to reflect on these stories, show that these verbs can be associated with a consideration of alternative viewpoints (e.g. I think I am an important link ..), with the expression of attitudes and emotions (e.g. ... you might have felt a bit exposed; Did you find it easy?), and with cooperative inquiry (e.g. ... if you consider the above ...; you are in a position to reflect on these stories). These examples show that through reflection on experience, the student is prompted to construct a personal understanding of relevant structures of meaning derived from his or her active participation in real world environments. Such emphasis on experience and reflection derives from the belief that reflection during and after action is considered an important mental process required to transform experience into knowledge. 16 The very significant use of general emphatics (e.g. more, most) and amplifiers (e.g. strongly, much, as well as) in all the guides can also be associated with the principles underlying transformative learning theory. Emphatics and amplifiers boost or grade attitudinal meaning and as such they indicate heightened emotion and are used by speakers or writers to signal their own opinion and to elicit a response from an addressee. As a result, emphatics and amplifiers are strongly associated with interpersonal interaction and interpersonal negotiation. The grading of attitudinal meaning compels students to take a stance and in the process they transform their existing frames of reference (e.g. In the process of doing so, you may become more aware of your own value system; What single event changed your life most significantly?; You will realise that the decisions you make today might strongly impact on the success of your career; These examples as well as others might influence your way of thinking to such an extent that…). Very significantly high counts for of wh-questions directed at the student clearly illustrate the student-centredness of the new guides (e.g. What does each aspect of it tell you about the possible causes of malnutrition?; How do you personally experience being a black person, woman, a gay person, elderly person, etc; Why, in your opinion, should the death penalty be reinstated in South Africa? Very significantly higher counts for contractions in student-centred texts signal the more informal and personal nature of such texts (e.g. You're welcome to do so; You're free to do that too; Of course you'd like to show off some of your better and more interesting work). Possibility modals (e.g. may, might, can, could) and adverbs such as probably and generally occur with very significantly higher counts in student-centred texts and can be linked directly the accommodation of multiple (or alternative perspectives on reality, which is a characteristic of transformative learning environments (e.g. It may 17 not be possible to gather together the same kind of diverse group in your community; If you simply leave the answers in your portfolio, they might not be of much use; This could be difficult; Such a person tends to be a hard worker and is generally highly motivated and energetic). Very significantly higher counts for the adverb today were also found in the new guides. This indicates that present-day issues are addressed – a phenomenon which can closely be associated with an acknowledgement of the student’s presence in the discourse (e.g. How do the environmental crises of the past compare with those we experience today? What are the differences between the criminal tendencies you experience today as opposed to those you experienced ten year ago?; If you could change one dramatic aspect of your life today, what would that be?). The limited scope of this paper does not allow for a full discussion of the findings, however, the data presented support the conclusion drawn by Hubbard (2001:232) that: ‘It would appear that macrosocial changes have affected the ethos of Unisa as a distance learning institution and that this changing ethos is being reflected in one of its most important discourses, namely that of its study guides’. CONCLUSION It was demonstrated in this paper that an analytical framework that would enhance our current understanding of the linguistic basis of the notion student-centredness in the context of distance learning texts, needs to allow for an analysis of language features associated with ‘involvement’, attitude and solidarity negotiation. However, distance education teaching texts comprise large corpora of data. As such analyses are virtually impossible if not conducted in an automated way, the present study 18 proposes that the analysis of texts in terms of their relative student-centredness can best be done by means of a framework that allows for an automated, corpus-based analysis of data and a calibration of texts in terms of their relative studentcentredness. 19 BIBLIOGRAPHY Biber, D. 1988. Variation across speech and writing. Cambridge: Cambridge University Press. Brown, P. & Levinson, S. 1987. Politeness: some universals in language usage. Cambridge: Cambridge University Press. 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Adult Education Quarterly 53 (3):176-192. 24 Table 1: Counts for features associated with student-centredness: Industrial Psychology INVOLVEMENT COUNTS: INDUSTRIAL PSYCHOLOGY FEATURES IPS202-D (1991) IOP303-V (2002) Private verbs 231 369 Contractions 3 35 2nd person pronouns 197 304 Analytic negation 97 122 Demonstrative pronouns 91 General emphatics 126 149 1st person pronouns ** ** ** ** 54 111 571 Pronoun it 146 137 Causative subordination 17 25 Discourse particles 13 15 Indefinite pronouns 24 26 General hedges 4 9 Amplifiers wh-questions Possibility modals Adverbs Conditional subordination TOTAL 52 139 136 234 52 1674 139 128 181 278 49 2591 ** ** * * ** (Differences between the two guides were taken to be significant if the p value was smaller than 0.05 [*: p≤0.05], and as very significant when the p value was smaller than 0.01 [**: p≤0.01]) . 25 Table 2: Counts for features associated with student-centredness: Anthropology FEATURES Private verbs INVOLVEMENT COUNTS: ANTHROPOLOGY SKA202-4 (1992) APY202-J (2003) 343 666 ** ** ** Contractions 0 16 2nd person pronouns 72 350 Analytic negation 260 225 Demonstrative pronouns 154 130 General emphatics 163 368 1st person pronouns 139 436 Pronoun it 267 268 Causative subordination 86 66 Discourse particles 8 21 Indefinite pronouns 27 46 General hedges 2 8 Amplifiers 127 163 ** wh-questions Possibility modals Adverbs Conditional subordination TOTAL 36 251 631 52 2618 133 291 825 65 4077 ** ** ** * * ** ** (Differences between the two guides were taken to be significant if the p value was smaller than 0.05 [*: p≤0.05], and as very significant when the p value was smaller than 0.01 [**: p≤0.01]) . 26 Table 3: Counts for features associated with student-centredness: Psychology FEATURES Private verbs Contractions INVOLVEMENT COUNTS: PSYCHOLOGY PSY313-D (1995) PYC205-A (2001) 501 473 6 132 ** ** ** 2nd person pronouns 386 962 Analytic negation 128 179 Demonstrative pronouns 62 82 General emphatics 82 183 1st 294 430 Pronoun it 144 210 Causative subordination 47 Discourse particles 28 51 Indefinite pronouns 52 83 General hedges 6 12 Amplifiers 65 107 ** wh-questions Possibility modals Adverbs Conditional subordination TOTAL 111 94 398 71 2474 201 173 288 92 3674 ** ** person pronouns ** ** ** ** ** 16 * * ** (Differences between the two guides were taken to be significant if the p value was smaller than 0.05 [*: p≤0.05], and as very significant when the p value was smaller than 0.01 [**: p≤0.01]). 27 Table 4: Counts for features associated with student-centredness: all study guides POSITIVE FEATURES Private verbs Contractions INVOLVEMENT COUNTS: ALL OLD GUIDES NEW GUIDES 1076 1508 9 183 ** ** ** 2nd person pronouns 654 1616 Analytic negation 486 526 Demonstrative pronouns 307 General emphatics 371 700 1st 543 1437 Pronoun it 557 615 Causative subordination 149 Discourse particles 48 87 Indefinite pronouns 103 155 General hedges 11 29 Amplifiers 244 409 ** wh-questions Possibility modals Adverbs Conditional subordination TOTAL 287 482 1263 175 6765 462 645 1391 206 10342 ** ** ** person pronouns * * 266 ** ** * 107 * * ** (Differences between the two guides were taken to be significant if the p value was smaller than 0.05 [*: p≤0.05], and as very significant when the p value was smaller than 0.01 [**: p≤0.01]) . 28