Repeated measures ANOVA is described as involving more than how many dependent samples?

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Multiple Choice

Repeated measures ANOVA is described as involving more than how many dependent samples?

Explanation:
Repeated measures ANOVA is used when the same subjects are measured under several conditions or across multiple time points, so the multiple measurements within each person are dependent. You need more than two measurements per subject to examine differences across several levels and to capture patterns or trends across those levels. If there are only two measurements per subject, a paired t-test is the more appropriate approach, since RM-ANOVA isn’t necessary for just two within-subject observations. The design involves dependent, not independent, samples, so three or more measurements per subject (more than two) is what truly calls for this method.

Repeated measures ANOVA is used when the same subjects are measured under several conditions or across multiple time points, so the multiple measurements within each person are dependent. You need more than two measurements per subject to examine differences across several levels and to capture patterns or trends across those levels. If there are only two measurements per subject, a paired t-test is the more appropriate approach, since RM-ANOVA isn’t necessary for just two within-subject observations. The design involves dependent, not independent, samples, so three or more measurements per subject (more than two) is what truly calls for this method.

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