10_13+Introduction+to+Experiments+-+Ch8

10_13+Introduction+to+Experiments+-+Ch8 - _ _ Sociology...

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1 Sociology SYA4300 Professor Rob White Thursday (10/13) Introduction to Experiments 1 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Towards the Optimal Research Design 2 The prospective study as experiment: Fixes treatment and control cases Costly. What if event is rare? Lung Cancer No cancer Total Sample Smokers A B A+B Non-smokers C D C+D ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Longitudinal Study Designs 3 The retrospective study as experiment Fixes cases by outcome (cancer) Efficient when outcome is rare. Validity of respondent’s memory? Reliability?
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10_13+Introduction+to+Experiments+-+Ch8 - _ _ Sociology...

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