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REPEATED MEASURES (ANOVA)

UNDERSTANDING THE REPEATED - MEASURES ANOVA REPEATED MEASURES ANOVA Analysis of Variance in which subjects are measured more than once to determine whether statistically significant change has occurred, for example, from the pretest to the posttest. (Vogt, 1999) REPEATED MEASURES (ANOVA) An ANOVA in which subjects are measured two or more times and the total variation is partitioned into three components: (1) variation among individuals; (2) variation among test occasions; and (3) residual variation (Hinkle, Wiersma, & Jurs, 2003). REPEATED - MEASURES design A research design in which subjects are measured two or more times on the dependent variable.

The degrees of freedom associated with the repeated-measures design are as follows: df I = n – 1 df O = K – 1 df Res = (K – 1)(n – 1) df T = N – 1 The effect of interest is the test occasion and is tested using the following F ratio: s O O MS MS F Re = The ANOVA summary table for the general simple repeated-measures ANOVA is as ...

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oak.ucc.nau.edu

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