PSY 3213C Final: Research Methods in Psych Exam 3 Study Guide
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Dv is measured again: repeated measures, posttest only, the same group of participants that do all of the same things within the study, and there is only a posttest administered. However, this comes with confounds that threaten validity, but will be discussed later in the study guide: what is a confound, a difference between experimental conditions other than the levels of the iv. Be able to identify them from examples: history effects: something changes in the environment or world that affects the. Dv (a famous person dies of smoking so subjects are motivated to quit). Be able to identify each factor: situation noise can also increase measurement error (decrease reliability): If the lines are not parallel, then there is an interaction: know the difference between independent groups, repeated measures, and mixed factorial designs. Large and small n designs: know situations in which one might use small n designs.
