Nonorthogonal Analysis of Variance Programs: An Evaluation
Abstract
Recently, at least four methods have been suggested for the analysis of nonorthogonal designs. However, even researchers who have decided which method is appropriate often do not know which computer programs are capable of performing the desired analysis. In addition, available programs differ widely in their accuracy and ease of use. We have evaluated some widely used ANOVA computer programs with respect to their capabilities for performing analyses using all four methods, their accuracy in performing these analyses, and other characteristics which influence their utility.