ERIC Number: EJ638449
Record Type: Journal
Publication Date: 2001
Reference Count: N/A
The Effects of Type I Error Rate and Power of the ANCOVA "F" Test and Selected Alternatives under Nonnormality and Variance Heterogeneity.
Rheinheimer, David C.; Penfield, Douglas A.
Journal of Experimental Education, v69 n4 p373-91 Sum 2001
Studied, through Monte Carlo simulation, the conditions for which analysis of covariance (ANCOVA) does not maintain adequate Type I error rates and power and evaluated some alternative tests. Discusses differences in ANCOVA robustness for balanced and unbalanced designs. (SLD)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Authoring Institution: N/A