A repeated-measures study uses a sample of n = 15 participants to evaluate the mean differences among four treatment conditions.In the analysis of variance for this study,what is the value for df between treatment?
A)3
B)4
C)5
D)59

Question

Quizplus · Accepted Answer

The degrees of freedom (df) between treatments for an ANOVA with four treatment conditions is calculated as the number of conditions minus one. Therefore, with four treatment conditions, df = 4 - 1 = 3.

A Repeated-Measures Study Uses a Sample of N = 15