Researcher knows: what changed, how much i. Don’t know who or why e. Cohort study: with people who share a similar event i. Ex: birth, marriage, divorce 3. Panel study** a. Measures the same population AND the same sample 3 times b. Advantage: can identify who changed and hopefully why c. Disadvantage: population is also changing across time d. Researcher controls: subjects selected, timing of observations e. Researcher knows: what changed, how much change, who changed, why changed (sometimes) f. Follow-up Study: i. Time 1: gather records and data from records ii. Time 2: take sample from people on records and collect new data iii. Repeat g. If panel studies are so good, why doesn’t everyone use it? i. Expensive ii. Subject fatigue iii. Panel attrition: losing people out of your panel (why?) 8. What is retrospective memory? What are the limitations of retrospective memory in surveys? (lecture) 9. List and describe the three kinds of longitudinal research designs: classical experimental Describe the two special types of trend and panel studies: cohort studies (p.36-37), follow-upstudies. Contrast and compare their strengths and weaknesses. (book and lecture)*** SEE #7 10. What is panel attrition? What are the six main sources of panel attrition? What is subjectfatigue? (p.35) (book and lecture)***
11. What is a Unit of Analysis? (p.37) Why is this choice important? What is the ecological fallacy? (p.38) The reductionist fallacy? (p.40) (book and lecture)
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- Fall '08