PSYC 231 Lecture Notes - Lecture 3: Dependent And Independent Variables
22 Jun 2018
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Example: Prejudice against fat women 2
o Experimental Study (Snyder & Haugen, 1995)
88 pairs of men and women communicated over the telephone
Men saw picture of their interaction partner prior to conversation –
Independent Variable!
o Condition 1: Thin picture
o Condition 2: Fat picture
Dyads then talked on the phone for 10 minutes
Completed measures: Dependent variables!
o DV 1: How positively did the men view their interaction partner?
o DV 2: How much did the men like their interaction partner
Independent coders listened to tapes of conversations and rated…
o DV 3: How positively did the women behave?
Document Summary
Example: prejudice against fat women 2: experimental study (snyder & haugen, 1995) 88 pairs of men and women communicated over the telephone. Men saw picture of their interaction partner prior to conversation . Independent variable: condition 1: thin picture, condition 2: fat picture. Dyads then talked on the phone for 10 minutes. Completed measures: dependent variables: dv 1: how positively did the men view their interaction partner, dv 2: how much did the men like their interaction partner. Independent coders liste(cid:374)ed to tapes of (cid:272)o(cid:374)(cid:448)ersatio(cid:374)s a(cid:374)d rated : dv 3: how positively did the women behave, principle of control. The only variable that differed between conditions was the weight of the woman in the picture principle of control. In other words, the results were not caused by the experimental manipulation. Instead, pre-existing differences between participants assigned to each condition resulted in the observed effects. To be sure about causation, experiments are always best.
