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Sphericity Is an Assumption in a Repeated Measures ANOVA

Question 9

Multiple Choice

Sphericity is an assumption in a repeated measures ANOVA. How is sphericity calculated?


A) By looking at the variability within each condition
B) By looking at the difference between the first and the last condition.
C) By looking at the size of the differences between conditions
D) By looking at variability in difference scores between conditions.

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