In the One-Way Repeated Measures ANOVA Summary Table,the _____ Source

In the one-way repeated measures ANOVA summary table,the _____ source reflects variability in the dependent variable that is due to individual differences.The purpose of partitioning this source of variability is to _____.

A) IV;test your null hypothesis
B) Across subjects;use it as the denominator in the F ratio
C) Error;use it as the denominator in the F ratio
D) Across subjects;exclude it from the denominator in the F ratio