In a learning study using repeated measures, the correlation between early and later times will likely be low. Analyzing fewer levels of the independent variable would help to avoid violating the assumption of A) normality. B) homogeneity of variance. C) constant correlations among pairs of levels of the repeated variables. D) MS_error is an unbiased estimate of the magnitude of effect of the predictor variable in a regression analysis.

Question

Quizplus · Accepted Answer

The assumption of constant correlations among pairs of levels of the repeated variables is known as compound symmetry. When analyzing more levels of the independent variable, the assumption of compound symmetry may be violated, leading to low correlations between early and later times. Therefore, analyzing fewer levels of the independent variable would help to avoid violating this assumption.

In a Learning Study Using Repeated Measures, the Correlation Between