SOCI 2P11 Lecture Notes - Lecture 8: External Validity, Internal Validity
12 Apr 2018
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Control group: not exposed to experimental stimulus (independent variable) Matching (want to make sure control group and experimental group are comparable in every way except that control group is not exposed to experimental stimulus) Two groups, equal in diversity, demographics and all other spectrums. One group is the control group and watches nemo in one room. The other group is the experimental and watches black panther movie in a different room. The goal is to determine whether attitudes towards black people change positively after watching black panther. Pre-test to post-test: more positive attitudes towards black people after watching black panther. Pre-test to post-test: not much difference in control group attitudes after watching nemo. Study 1: survey, n= 204, dependent: attitudes towards women. Study 2: experiment, n= 75, control group: watches psychology documentaries for 4 hrs for 5 days, experimental group: watches violent porn for 4 hrs for 5 days.
