Part%209%20Research%20Strategies%20and%20Validity0

Part 9 Research Strategies and Validity0

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Unformatted text preview: .9 0.8 r=0.33 0.6 Test 1 0.5 0.4 r=0.06 0.5 0.4 0.3 0.3 0.2 0.1 0.2 0.1 0 0 0 0.2 0.4 0.6 Test 1 0.8 1 0 0.2 0.4 0.6 Test 1 0.8 1 Nonexperimental group comparison Nonexperimental group comparison research • Essentially the same as correlational research except that one of the variables ( the predictor or IV) is a categorical (nominal) variable – – – – Therefore we cannot calculate a correlation coefficient Instead we compare group means There are no manipulated variables We do not assign participants to conditions we simply record what category they are in • Is there a difference in IQ between men and women? • Is there a difference in the total amount of REM sleep • experienced by depressed vs. non­depr...
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This note was uploaded on 03/12/2013 for the course PSYC 2001 taught by Professor Mathewyoung during the Winter '11 term at Carleton CA.

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