PSYC 2001 Lecture Notes - Lecture 8: Internal Validity, Dependent And Independent Variables, Blind Experiment
14 Jul 2020
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Simple experiments: experimental, experiments , at least one manipulated variable , at least one measured variable . In research on multiple schlerosis because cannot get much data. Latin square design each condition appears in each order position (first, second, third, etc. ) only once: a, b , c, a will be in first once, second once and third once. It is an independent groups design with a pretest : participants only get 1 level of the independent variable, determines what other things are at play such as practice and fatigue affects. If your studying drugs affects cannot do repreated measures because canot reverse effects of drugs fast enough. Independent groups : matched groups , repeated measures (within groups) counterbalancing , pretest/post test, types of comparision groups, control group: a level of an independent variable that represents no treatment or. Highly similar scores (need small variability within the group) Highly similar scores (need small variability within the group: actual participants being similar.
