APMA 3120 Chapter Notes - Chapter 10: Studentized Range, A Priori And A Posteriori, John Tukey
19 Apr 2016
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Purpose is to compare the means of two or more groups (iv) on one dv to see if the group means are significantly different from each other i. If comparing means of 2 iv groups on a single variable, can use either an independent samples t-test or one-way anova and get the same results except anova produces an f ratio (which is the value squared) b. In sse, subtract the group mean from individual scores in each group and in ssb subtract the grand mean from each group mean. Unlike t values, the significance of f values depends on both the # of cases in the samples (df for. Mse) and the number of groups being compared (df for msb) used to control for the comparison of more than two groups. N k k= of groups n totalcases of all groups. Sst=sst r+sse sse= (x x k)2 wherek = of groups.
