PSYC 2030 Study Guide - Midterm Guide: Confounding
16 Oct 2011
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5 short answer questions (no definitions. ex. how could _____ act as a confounding variable, give an example of how regression could act as a confounding variable in a post study) Cohort effect (last lecture) subject variable (can reek the same kind of issues) group was exposed to a particular time in history". Page 3: within (or repeated measures) -same subjects tested repeatedly) t-tests. Is there an advantage as having more then 2 levels? (multi-level design) allows you to discover non-linear effects (if you look at a graph, it will not be a straight line) Continuos variable: a variable for which there is an infinite number of values that potentially exist, the variable is on a continuum, ex. age, temp, weight, time, dosage, height etc, graph: bar graph, histogram, line graph. Discrete variable: each level represents a distinct category that is qualitatively different from another, no interpolation can be done, graph: bar graph only (no histograms- eg. male vs.
