PSY260 Exam 3 Study Guide PDF

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PSY-260 Introduction to Psychological Research and Ethics Study Guide Exam 3 Chapters 7-11 1. Define a. Sample b. Population c. Random sample d. Simple random sample e. Stratified random sample f. Convience sample g. Systematic random sample h. Cluster sample i. Quota sample 2. Define a. Bivariate correlations b. Multivariate correlations c. Longitudinal design d. Correlation coefficient. e. Mediators f. Moderators 3. Describe how to interpret a bar graph. When is a bar graph better than a scatterplot? 4. Are there cases in which reporting a small effect would be important? 5. What factors influence statistical significance? 6. When interrogating association claims, describe: a. Effect size b. Statistical significance c. Outliers d. Restriction of range e. Curvilinear association 7. Explain multiple regression designs and experimental designs. Which is a stronger design and why? 8. What is the pattern and parsimony approach to causation? 9. Compare third variables and mediating variables. 10. How many steps are required to determine mediation? 11. Define a. control variables

b. c. d. e. f. g. h.

independent variables dependent variables measured variables manipulated variables confounds design confounds counterbalancing i. Describe the purpose of each experiment. 12. Why do experiments utilize random assignment? 13. What is the difference between independent-groups design and within-groups design? 14. What design is used to address possible selection effects? 15. Difference between Post Test only and Pretest/Post Test design? 16. Describe internal validity threats to within groups design and independent groups design. 17. Define a. Cross sectional correlations b. Autocorrelations c. Cross-lag correlations. 18. What is the main priority for experimental studies? 19. Define a. Maturation threats to internal validity b. History threats to internal validity c. Regression threats to internal validity d. Attrition threats to internal validity e. Testing threats to internal validity f. Instrumentation threats to internal validity g. Double blind placebo control study h. Null effect i. Obscuring factors i. Weak manipulations ii. Insensitive measures iii. Reverse design confound iv. Ceilings and floors...