A review of the research literature on systematic instructional design indicates that few empirically supported guidelines exist for testing materials under development and for improving materials on the basis of feedback from potential learners. In an analysis of 17 textbooks on instructional design, eight specific aspects to be considered in…

A review of the literature on systematic instructional design suggests that few empirically tested guidelines exist for testing and revising materials during the development stages. The revision process can broadly be based on one of two distinct strategies, internal review or developmental testing. Internal review strategies include referring…