Chapter 10 Part 2 - Skeleton

Chapter 10 Part 2 - Skeleton - Psy250: Scientific Inquiry...

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Complex Experimental Designs Psy250: Scientific Inquiry Chapter 10
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Notes About Attendance Assignment From Last Class 2 Iv means we have 2 main effects. Dependent variable on Y axis ( in this case rating of ice cream people made from 1-5)
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Outcomes of a 2 x 2 Factorial Design 2 x 2 factorial design: 2 IVs, each with 2 levels When analyzing results several possibilities: May or may not be main effect of independent variable A May or may not be main effect of independent variable B May or may not be significant interaction between IVs
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Interactions and Simple Main Effects Analysis of variance (ANOVA) used to assess main effects and interactions in factorial designs If there is a significant interaction, need to statistically evaluate individual means Simple main effect: effect of one IV at particular level of another Iv. -examine mean differences at each level of IV Main effect of an IV averages across levels of other IV: simple main effects analyze results as if there were separate experiments at each level of other IV
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Chapter 10 Part 2 - Skeleton - Psy250: Scientific Inquiry...

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