PSYC 3000 Study Guide - Analysis Of Variance

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2-way design, the value of is always greater than or equal to the value of. In a 1-way within-subjects anova the sum-of-squares term quantifying the stable differences between participants is calculated using all the observations in the entire design. T in a 2-way within-subjects design, if both variables have 5 degrees of freedom, then the degrees of freedom for their interaction is 10. F [levels a x levels b, 5x5=25] when considering the main effect of treatment a in a 2-way anova, the larger the standard deviation of the marginal means for treatment a, the larger the effect size, fa. T the dependent variable in a within-subjects anova is assumed to be nominal data. T[each treatment has own error] for a 2-way mixed-factors anova, the main effects of the treatments and the interaction are all tested using different mserror terms.