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Unformatted text preview: to control box on homework must do all possible combinations - select one or two tailed (and state why) choosing one or two tailed changes the significance (p-value) - click ok example: - exam anxiety and performance controlling for time spent revising has a small effect with a positive correlation **make sure you state which variable youre controlling for - time spent revising and exam performance is not significant - time spent revising and exam anxiety is a large effect with a negative correlation...
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This note was uploaded on 08/30/2010 for the course PSYC 209 taught by Professor Hoffman during the Spring '08 term at University of Delaware.
- Spring '08