Using student performance data for improving individualized instructional units

Summary The improvement of the educational process is an ongoing activity. The examples presented have shown the data upon which revisions of PLAN modules were made and have shown student performance results on the revised materials. Presented as part of a symposium, PLAN in Operation—A Summary of Four Years’ Experience in the Evolution of an Educational System, for Divisions 5 and 15, American Psychological Association, Miami Beach, Florida, September 5, 1970. The work discussed in this paper was conducted while Mr. Rahmlow was associated with the American Institutes for Research.