This paper presents a general model for conceptualizing and testing the interactions of individual differences and subject-matter characteristics with instructional methods. The model postulates certain ways of classifying the variables of interest in such investigations and of conceptualizing the cause-and-effect relationships among those classes…

Elaborates on the nature of the new paradigm of instructional theories (May-June 1996 issue) by summarizing 21 theories that are described in "Instructional-Design Theories and Models: A New Paradigm of Instructional Theory." Divides theories into seven broad categories: understanding, problem-based learning, community of learners,…