PSYB01H3 Chapter Notes - Chapter 9: Psychological Science, The Strongest, Interpersonal Communication
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In the experimental method, extraneous variables are controlled. Experimental control or through random assignment: if the scores of the groups are diff, the researcher can conclude that the iv caused the results bc the only diff bw groups is the manipulated. Participants randomly assigned here are in the control condition and are not given the pretest. Participants randomly assigned here are in the control condition and are given the pretest. Participants randomly assigned here are in the experimental condition and are not given the prestest. Repeated measures design: repeated measures desgn/within-subjects design: participants are repeatedly measures on the dv after being in each condition of the experiment, pretests can be used. = three factorial = 3 x 2 x 1 = 6: with 4 groups, the number of possible orders increases to 24 (4! Partial counterbalancing: one technique to control for most order effect without having all the possible orders is to construct a latin square.
