The objectives of the study were to determine (1) whether contingent music listening would significantly increase correct responses to mathematical problems compared to other activities and reinforcers, and (2) whether there are significant differences between the reinforcing effects of two types of music listening activities. (Author)

The utility of the Rasch logistic measurement model in longitudinal analyses of children's self-concept was investigated. Calibration of an 80-item self-concept measure from the responses of 1,000 elementary school children resulted in the identification of 25 items that fit the model. Repeated measures analyses of variance used to assess the…

This longitudinal study used repeated measures analysis of variance (RM ANOVA) and latent growth curve modeling to examine behavior change in 228 elementary school students over grades 1, 2, and 3 who varied in risk status. Of particular interest were the developmental trajectories for behaviors along four dimensions as rated yearly by teachers on…