Psych 100A - Two Way ANOVA (Lec. 15ish)

Psych 100A - Two Way ANOVA (Lec. 15ish) - Essentials of...

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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen Two-Way Between- Groups ANOVA Chapter 12 Revised by Jeffrey B. Henriques, Ph.D. University of Wisconsin-Madison
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen We’ve covered: Between Within Again, this limits what we can ask What more could be left?! There’s still another type of ANOVA
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen Factorial ANOVAs Factorial ANOVA uses one scale DV and at least two nominal IVs (factors) Factor: IV in a study with more than one IV Level: different values of a factor Can determine individual and combined effects of the IVs We will be focusing on two-way ANOVAs
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen Testing for Interactions An interaction occurs when two IVs have an effect in combination that we do not see when looking at each IV individually When the level of one IV changes the impact of the other IV Two-way ANOVAs include two nominal IVs and a scale DV
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen Why Use Two-Way ANOVAs To evaluate effects of two IVs, it is more eff i cient to do a single study than two studies with one IV each Can explore interactions between variables
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen Partitioning Variance in the Two- Way Between-Groups ANOVA
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Essentials of Statistics for the Behavioral Sciences, 2nd Edition Susan A. Nolan Thomas E. Heinzen
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