PSYC 2040 Lecture Notes - Lecture 8: Null Hypothesis

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2040
• Professor: David Stanley

Document Summary

Iq tends to explain why some people get higher video game scores or lower video game scores. As you decrease iq you decrease video game scores. Correlaion is an index of how closely points fall on the best it line index of linear it. Regression is the process we use to generate the equaion that describes the best it line. A correlaion can be calcualated even when we don"t know the formula for the best it line. A psychological experiment tends to have a correlaion of . 30 (not good), we only predict with the x axis (behaviour can"t be predicted real good complicated, hard to say if this happens every ime this happens) Posiive correlaion = x increase = y increase. Negaive = x increase = y decrease. Venn diagrams and correlaions how much variance they share, how much overlap.