Study on Well-being Differences based on Gender and Therapy Type

1. Which is not one of the steps for Prepping the data for analysis:
2. reverse scoring any necessary items in the measure
3. checking reliability of the measure
4. deciding whether or not to reject the null hypothesis
5. computing overall score for the measure

2. A MANOVA is an example of ______________ statistics.
3. univariate
4. bivariate
5. multivariate

3. A 3x2 ANOVA refers to an analysis with:
4. 2 IVs with 3 levels each
5. 2 IVs: one with 3 levels and one with 2 levels
6. 3 IVs with 2 levels each
7. 1 IV with 3 levels, 1 DV with 2 levels

4. MANOVA is an extension of ANOVA, in which we assess:
5. Main effects and interactions of IVs on the DV after controlling for the effect of one or more covariates
6. Main effects and interactions of the IV(s) on the DVs
7. Main effect of the IV on the DV
8. None of the above

5. The BEST multivariate test to use when all assumptions have been met is:
6. Pillai’s Bartlett Trace
7. Wilk’s Lambda
8. Hotelling-Lawley
9. Roy’s Largest Root

6. The BEST within-subjects effects test to use when all assumptions have been met is:
7. Sphericity Assumed
8. Greenhouse-Geisser
9. Huynh-Feldt
10. Lower-bound

7. Multiple regression is an extension of simple linear regression, in which we assess:
8. If one variable predicts one other variable
9. If one variable predicts a set of other variables
10. The best set of predictors in predicting one other variable
11. None of the above

8. What does R²tell us in multiple regression?
9. the strength and direction of the relationship, ranging from -1 to 1
10. the amount of difference between two groups
11. the percent of variance in the DV explained by the IVs
12. the frequency in the sample compared to the population

9. Hierarchical regression differs from multiple linear regression, because hierarchical regression…
10. does not specify which variables to control for
11. does not specify the order in which to enter the variables
12. does specify the order in which to enter the variables into the analysis
13. only has one predictor variable

10. Mixed within-between subjects repeated measures ANOVA differs from within-subjects only repeated measures ANOVA, because mixed within-between subjects repeated measures ANOVA…
11. only has one independent variable
12. looks at changes over time
13. has a within subjects independent variable
14. has a between subjects independent variable

11. What is/are the main difference(s) between discriminant analysis and logistic regression?
12. Discriminant analysis can be more accurate/less biased because of the jack knife method (aka leave one out method)
13. Discriminant analysis allows us to predict membership to more than 2 groups
14. Logistic regression is less sensitive to violations of assumptions
15. All of the above

(For Questions #12-19) VIGNETTE 1: A psychologist is interested in studying if there is a significant difference in well-being (as measured by the outcome rating scale, a 75 question, summative 10-point likert scale measure) based on gender (male, female) and type of therapy received (Cognitive Behavioral Therapy, Systemic Therapy).  

12. What is/are the IV(s)?
13. well-being
14. gender, type of therapy
15. well-being, gender
16. type of therapy, well-being

13. What is the level of measurement of the IV(s)?
14. nominal
15. ordinal
16. interval
17. ratio

14. What is/are the DV(s)?
15. well-being
16. gender, type of therapy
17. well-being, gender
18. type of therapy, well-being

15. What is the level of measurement of the DV(s)?
16. nominal
17. ordinal
18. interval
19. ratio

16. What is the appropriate statistical analysis to answer this research question?
17. mixed within-between subjects repeated measures analysis of variance
18. one-way multivariate analysis of variance
19. two-way analysis of covariance
20. two-way analysis of variance

17. Based on the plot below, would you estimate (aka does it APPEAR) that there is a main effect for gender on well-being?
18. yes
19. no

18. Based on the plot below, would you estimate that there is a main effect for type of therapy on well-being?
19. yes
20. no

19. Based on the plot below, would you estimate that there is a gender x therapy interaction effect on well-being?
20. yes
21. no