PS395- Midterm Exam Guide - Comprehensive Notes for the exam ( 55 pages long!)
Document Summary
What is the paired/related t-test: examines differences in mean (parametric) dependent variable scores across two within- group conditions (the independent variable), measured across a single group (the same person) Other names for the related t-test: other names: within-group t-test, repeated-measures t-test, related samples t-test, paired samples t-test. Research question for the related t-test: what factors aid more effective memory recall. Iv presentation type ( with picture" and without picture") Problems with between-group studies: often use within-group methods for research because of the difficulties we encounter with between-group methods it is difficult to completely eradicate individual differences in between-group studies. 1: the only sure way to control for potentially extraneous variables is to match" the groups on everything but the independent variable. If we do not control individual differences properly, we cannot be confident that the observed differences are not actually due to the extraneous variables: because of that, many researchers choose within-group studies to overcome this dilemma.
