A repeated-measures experiment compares three treatment conditions with a sample of n = 10 participants.If the data are analyzed with ANOVA,the analysis would have df_total = ____. A)27 B)28 C)29 D)30

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For a repeated-measures ANOVA with three treatment conditions and a sample of n = 10 participants, the degrees of freedom for the total (df_total) is calculated as the total number of observations minus 1. Since each of the 10 participants is measured in each of the 3 conditions, there are a total of 30 observations. Therefore, df_total = 30 - 1 = 29.

A Repeated-Measures Experiment Compares Three Treatment Conditions with a Sample