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Unformatted text preview: Violence ------ gaming Gaming-------- violence Or maybe a third variable 1. Genetic Predisposition 2. Peer Group Influence 3. ?? Limits of Correlation Can show an association but not a cause Correlation Does not mean causation KEY POINTS of correlations coefficient Indicates the strength of the relationship from -1.0 to +1.0 Indicates the direction of the relationship Positive vs Negative KEY POINTS ON correlation Beware of bi-directionality Beware of third variables Correlation does not equal causation The EXPERIEMENT Independent variable is always manipulated Dependent Variable is always measured Control Extraneous Variables Need an “operational definition” of aggression Abstract concept----- observable/measureable OPERATIONAL DEFINITIONS (HAS TO BE SOMETHING MEASURABLE)-Depression Chemical levels in the brain-Intelligence IQ test-Alcoholic Intoxication Blood alcohol level or walking in a straight line...
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- Spring '09
- Correlation does not imply causation, correlations coefficient Indicates