A numerical taxonomy of evaluation theory and practice is presented, based on responses by 14 leading evaluators to a two-page questionnaire. A multidimensional scaling analysis of results indicated that differences between evaluation theories are more complex and more divisive than are differences in evaluation practice. (TJH)

Twenty-five HIV-negative late adolescents (13 women and 12 men) who had lost a parent to AIDS generated vignettes in which the characters were deciding whether to use a condom (condom scripts). Two clinically trained judges rated the interpersonal tone of the condom scripts on 17 semantic differential scales. Three other clinically trained raters…

Latent growth curve modeling provides a powerful and flexible tool for researchers to study individual differences in change as well as the correlates and predictors of change. Recent developments in estimation and hypothesis testing procedures are largely based on confirmatory structural equation approaches. In this article, an alternative…