PSY 303 Lecture 16: 303 Contrasts
Document Summary
Contrasts: problem set due friday (still, finalize materials section, sigle page of materials, contrast- an analysis of a specific variance. Portion of bgv accounted for by a specific predicted pattern of means. The obtained means are weighted based on what was predicted. To the extent that the obtained patterns of means corresponds to the predicted pattern, the contrast will be stronger. The contrast ss will be a greater proportion of bgv: anova source table contrasts are part of between group-variance, spss gives contrasts in form of t-test, where contrasts fall short. Predicted means ex: blue ink increases self esttem relative to red and black ink (hypothesis) \red ink and black ink vs blue ink. F(1, 21)= 5. 88/. 225= p
