Unformatted text preview: placebo. This is important because it is common for a subject to psychologically feel better when they think they have been given a treatment, even when they have not. *4.) This allows the researcher to distinguish between the effects of the vaccine on men and women separately. *5.) Observational study 7.) Observational study 9.) Prospective 11.) Cross-Sectional 32.) Confounding could occur in a study on whether or not parents’ incomes cause higher student grades....
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This note was uploaded on 04/17/2008 for the course MATH unknown taught by Professor Sapko during the Fall '08 term at Mass Colleges.
- Fall '08