The author is pleased to have the opportunity to respond to "Measuring Students' Writing Ability on a Computer-Analytic Developmental Scale: An Exploratory Validity Study." The authors of that article have undertaken a challenging project and seem to be on track to developing a technically adequate, practically useful writing…

This report summarizes the research results and provides a reference. The basic question addressed was, "Is performance on multi-component tasks predicted by performance on the individual components performed separately?" In the first series of experiments, a dual task involving memory and verbal processing components to predict a…