Studies the effects of varying levels of interactivity on the learning rate of 98 high school students using four increasingly interactive versions of computer-based interactive video instruction. Students are grouped by ability levels and results are compared for recall rate, instructional time, and acquisition rate. Twenty-two references are…

Replicates an earlier study that used videotapes to examine the types of errors made by novice economics students in graphic analysis of a simple supply-demand problem. Further explores the issue by improving the framework for analyzing errors and documenting some methods used by novice groups to correct errors. (MJP)