EMR 6500: Survey Research Dr. Chris L. S. Coryn Lyssa N. Wilson Spring 2015 Agenda • Constructing open- and closed-ended items • Case Study #3 Open-Ended Questions Open-Ended Requests for Numerical Responses • General guidelines 1. Ask for the specific unit desired in the question stem 2. Provide answer spaces that are sized appropriately for the response task 3. Provide units labels with the answer spaces Open-Ended Numeric A poorly constructed open-ended number box question In an average week, how often do you cook dinner at home? A revision that includes the unit desired in the question stem In an average week, how many days do you cook dinner at home? A revision that provides an appropriate sized answer space for the response task In an average week, how often do you cook dinner at home? A revision that includes unit labels with the answer space In an average week, how often do you cook dinner at home? Days per week (0 – 7) Open-Ended Requests for a List of Items • General guidelines 1. Specify the number and type of responses desired in the question stem 2. Design the answer spaces to support the number and type of responses desired 3. Provide labels with answer spaces to reinforce the type of response requested Open-Ended Lists A list-style question as commonly designed What businesses would you most like to see in the Kalamazoo area that are currently not available? A list-style question with multiple answer boxes What businesses would you most like to see in the Kalamazoo area that are currently not available? A list-style question with labeled answer boxes What businesses would you most like to see in the Kalamazoo area that are currently not available? Business #1 Business #2 Business #3 Open-Ended Requests for Description and Elaboration • General guidelines 1. Provide extra motivation to respond 2. Provide adequate space for respondents to completely answer the question 3. Use scrollable boxes on internet surveys 4. Consider programming probes to openended responses in internet surveys Open-Ended Description and Elaboration A poorly constructed descriptive open-ended question Why did you move to Kalamazoo? A revision that provides extra motivation to respond Your answer to this question is very important for understanding what brings people to Kalamazoo. Why did you choose to move to Kalamazoo? Closed-Ended Questions General Guidelines 1. State both positive and negative sides in the question stem when asking either/or types of questions 2. Develop lists of answer categories that include all reasonable possible answers 3. Develop lists of answer categories that are mutually excusive 4. Maintain spacing between answer categories that is consistent with measurement intent Positive and Negative Sides in Question Stem Exhaustive and Mutually Exclusive Questions A question that is not exhaustive or mutually exclusive From which one of these sources did you first learn about the tornado in Kalamazoo? Radio Television Someone at work While at home While traveling to work A revision that is exhaustive and mutually exclusive From which one of these sources did you first learn about the tornado in Kalamazoo? Radio Television Internet Newspaper Another person Where did you first hear about it? At work At home Traveling to work Somewhere else Spacing Response Options Evenly Closed-Ended Questions: Nominal Scales • General guidelines 1. Ask respondents to rank only a few items at once rather than a long list 2. Avoid bias from unequal comparisons 3. Randomize response options if there is concern about order effects 4. Use forced-choice questions rather than check-all-that-apply questions 5. Consider using differently shaped answer spaces (circles and squares) to help respondents distinguish between singleand multiple-answer questions Closed-Ended Unordered Most simple form: Two categories While growing up did you live mostly on a farm or mostly elsewhere? Farm Elsewhere A more difficult form: Multiple complex categories If the highway bypass were to built on one of these routes, which would you most prefer? A north route that starts west of the city at Exit 21 (Johnson Road) off Highway 30, crosses Division at North 59th Street, and reconnects to Highway 30 three miles east of the city at River Road. A modified north route that starts further west of the city at Exit 19, crosses Division at 70th Street, and reconnects to Highway 30 three miles east of the city at River Road. A south route that begins west of the city at Exit 19, crosses Division at South 24th Street, and reconnects to Highway 30 east of the city at River Road. Another difficult form: The ranking question Which of these do you believe are the largest and smallest problems facing residents of the Kalamazoo area? Use “1” for the largest problem, “2” for the second largest problem, and so forth until you have completed all eight. Lack of community involvement Taxes are too high Lack of affordable health care Lack of money for local schools Lack of affordable housing Lack of good jobs Too much crime overall Too much drug use Ranking: Pairwise Comparisons • In ranking questions, it is typically better to present respondents with sets of paired comparisons so that they are only comparing two concepts at a time until all options have been compared to one another Bias from Unequal Comparisons Unequal comparison Which of the following do you feel is most responsible for recent outbreaks of violence in America’s schools? Irresponsible parents School policies Television programs A revision with more neutral response options Which of the following do you feel is most responsible for recent outbreaks of violence in America’s schools? The way children a raised by parents School policies Television programs A simplified revision Which of the following do you feel is most responsible for recent outbreaks of violence in America’s schools? Parents Schools Television A revision retaining more complex descriptions To what extent do you feel that the way children are raised by parents is responsible for recent outbreaks of violence in America’s schools? Completely responsible Mostly responsible Somewhat responsible Not at all responsible Check-all-that-Apply versus Forced-Choice Check-all-that-apply formatted question Which of the following varsity sport would you consider yourself to be a fan of? Check all that apply. Men’s baseball Men’s basketball Women’s basketball Women’s cross-country Men’s gold Women’s golf A revision converting to the forced-choice format Do you consider yourself to be a fan of each of the following varsity sports? Yes No Men’s baseball Men’s basketball Women’s basketball Women’s cross-country Men’s gold Women’s golf Distinguishing Between Singleand Multiple-Answer Questions Little distinction between single- and multiple-answer questions Of the following considerations, which is the most important to you when purchasing a new car? Of the following considerations, which three are most important to you when purchasing a new car? Price Price Color Color Exterior condition Exterior condition Interior condition Interior condition Amenities Amenities Answer space designed to help differentiate between single- and multiple-answer questions Of the following considerations, which is the most important to you when purchasing a new car? Of the following considerations, which three are most important to you when purchasing a new car? Price Price Color Color Exterior condition Exterior condition Interior condition Interior condition Amenities Amenities Closed-Ended Questions: Ordinal Scales • General guidelines 1. 2. 3. 4. 5. 6. 7. 8. Choose an appropriate scale length—in general, limit scales to four or five categories Choose direct or construct-specific labels to improve cognition Provide scales that approximate the actual distribution of the characteristic in the population Provide balances scales where categories are relatively equal distances apart conceptually Consider how verbally labeling and visually displaying all response categories may influence answers Carefully evaluate the use of numeric labels and their impact on measurement Align response options vertically in one column or horizontally in one row and strive for equal distance between categories Place nonsubstantive options at the end of the scale and separate them from substantive options Polarity in Ordinal Scales • Unipolar ordinal scales measure gradation along one dimension where the zero point falls at one end of the scale • Bipolar ordinal scales measure gradation along two opposite dimensions with the zero point falling in the middle of the scale – Level (e.g., satisfaction, importance) – Direction (i.e., positive, negative) Scalar Questions A 5-point bipolar scale A 7-point bipolar scale How likely or unlikely are you to make a monetary donation to the Red Cross this year? How likely or unlikely are you to make a monetary donation to the Red Cross this year? Very likely Very likely Somewhat likely Somewhat likely Neither likely nor unlikely Slightly likely Somewhat unlikely Neither likely nor unlikely Very unlikely Slightly unlikely Somewhat unlikely Very unlikely A 4-point unipolar scale A 5-point unipolar scale How important do you feel it is to volunteer your time with organizations like the Red Cross? How successful do you feel the Red Cross has been at getting assistance to natural disaster victim? Very important Completely successful Somewhat important Very successful Slightly important Somewhat successful Not at all important Slightly successful Not at all successful Construct-Specific Scales Question with multiple constructs Construct-specific questions Construct of interest: Accessibility of instructors To what extent do you agree or disagree that your instructors are available outside of class? How accessible or inaccessible are your instructors outside of class Strongly agree Very accessible Agree Somewhat accessible Neutral Neutral Disagree Somewhat inaccessible Strongly disagree Very inaccessible Construct of interest: Frequency of attending religious services How often did you attend religious services during the past year? How often did you attend religious services during the past year? Never Not at all Rarely A few times during the year Occasionally About once a month Regularly Two to three times a month About once a week More than once a week Balanced Scales with Even Distance Between Categories Unbalanced scale with uneven distance between categories To what extent do you favor or oppose the death penalty? Balanced scale with more even distance between categories To what extent do you favor or oppose the death penalty? Strongly favor Strongly favor Slightly favor Somewhat favor Neither favor nor oppose Neither favor nor oppose Slightly oppose Somewhat oppose Mostly oppose Strongly oppose Entirely oppose Fully Labeled and Point-Polar Labeled Scales A fully labeled scale with verbal labels for all of the categories How satisfied are you with your decision to attend WMU? Very satisfied Somewhat satisfied Neutral Somewhat dissatisfied Very dissatisfied A polar-point labeled scale with verbal labels only for the endpoints How satisfied are you with your decision to attend WMU? 5 Very satisfied 4 3 2 1 Very dissatisfied A polar-point question with no visual display of the scale (as it might be read over the telephone On a 5-point scale, where 5 means very satisfied and 1 very dissatisfied, how satisfied are you with your decision to attend WMU? You may use any of the numbers 5, 4, 3, 2, or 1 for your response. Alignment of Response Options Primacy and Recency • Primacy occurs when respondents are more likely to select the first option when a scale is presented visually • Recency effects occur when respondents are more likely to select the last option when a scale is presented aurally Aligning Conceptual and Visual Midpoints Conceptual and visual midpoints are properly aligned To what extent do you approve or disapprove of the way Democrats in Congress are handling their jobs? Very much approve Somewhat approve Visual midpoint Neither approve nor disapprove Conceptual midpoint Somewhat disapprove Very much disapprove Adding a “Don’t know” category misaligns the conceptual and visual midpoints To what extent do you approve or disapprove of the way Democrats in Congress are handling their jobs? Very much approve Somewhat approve Neither approve nor disapprove Visual midpoint Conceptual midpoint Somewhat disapprove Very much disapprove Don’t know No opinion Visually separating the “Don’t know” category realigns the conceptual and visual midpoints To what extent do you approve or disapprove of the way Democrats in Congress are handling their jobs? Very much approve Somewhat approve Visual midpoint Neither approve nor disapprove Somewhat disapprove Very much disapprove Don’t know No opinion Conceptual midpoint Other Types of Closed-Ended Scales Method of Equal-Appearing Intervals • One of Thurstone’s methods of scaling 1. 2. 3. 4. 5. 6. 7. 8. Determine attitude object to be measured Construct a set of statements about the attitude toward the object that captures an entire range of opinions, from extremely favorable, to neutral, to extremely unfavorable Typically requires 40-50 statements Judges rate favorability values for statements using an 11-point scale Statements are sorted into 11 physical piles (Q-sort) Measures of central tendency are used to construct values for each statement The final scale is constructed by randomly organizing final statements into a checklist Scale scores are calculated by taking the mean of endorsed statements Thurstone Scale Check (ü) the statements with which you agree. 1. Abortion brings happiness to some, unhappiness to others (5.1) 2. Abortion should be encouraged for all unwanted pregnancies (10.4) 3. Abortion prevents an unwanted child growing up in an orphanage (8.0) 4. Abortion is allowable if there is no financial cost to the public (6.0) 5. Abortion weakens the moral fiber of our society (1.6) 6. We must allow abortions for certain situations (8.7) 7. Abortion is never justified (1.1) 8. It does not make any difference to me whether we allow abortions or not (5.6) 9. Most people are too lax about allowing abortions (3.2) 10. People who get abortions deserve our understanding, but not special treatment (7.6) Semantic Differential • Osgood’s method of scaling based on connotative meaning of words, which refers to the associations of meaning that are attached to a word that are not part of its formal definition (denotative meaning) • Opposing adjective pairs are used to assess three underlying dimensions of connotative meaning 1. Evaluation, which reflects the good-bad continuum of meaning underlying words (e.g., good-bad, valuable-worthless) 2. Potency, which reflects the strong-weak continuum (e.g., large-small, strong-weak) 3. Activity, which reflects the active-passive continuum (e.g., fast-slow, hot-cold) Semantic Differential Response Formats Check (ü) the position between each adjective pair that best describes the meaning of abortion to you. Bad Good Bad 1 2 3 4 5 6 7 Good Bad -3 -2 -1 0 +1 +2 +3 Good Bad Good Case Study #3 Case Study Activity 1. Construct three questions of any type that reflect the concept/ construct of ‘course quality’ 2. Present your questions and response options to the class and discuss how are your questions ‘better’ than the standardized questions – The group with the ‘best’ questions will receive 5 extra credit points, the second best will receive 4 extra credit points, and so forth