Using reasonable values for the parameters in both null and alternative hypotheses about covariance matrices, an optimal and feasible combination of number of subjects, significance level, and power of the test were determined for an empirical study of the measurement of musical ability. (Author/BW)

Fuzzy trace theory posits that during development the use of verbatim information for solving transitive relationships shifts to the use of gist information. In cognitive developmental research that uses a cross-sectional design, the binomial mixture model is often used to identify such shifts. Because the binomial mixture model assumes equal task…

The factorial validity of the Maslach Burnout Inventory (MBI) and the equivalence of factorial measurements and structure across groups were studied for 163 intermediate-grade teachers, 162 secondary school teachers, and 218 university teachers in Canada. Reasons why the MBI may not be appropriate for university educators are discussed. (SLD)