I have collected some data using older adults have found a significant difference (p < .05) between the three groups in terms of their activity level. Subsequent to this analysis I am contrasting the three groups on a balance measure and deciding whether or not to use activity level as a covariate in the ANOVA calculations.
The question I have is whether or not to use activity level as a covariate or not, based on the fact that the main effect for activity level violated the assumptions of the homogeneity of regression slopes when compared with one of the DV used in the study. I do have a small sample size and consequently did not use the covariate analysis but wanted to see if I was justified based on the violation listed above. Any help would be appreciated. Thanks, Clark Dickin . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
