Describes longitudinal studies conducted at the Drexel Early Childhood Center (Pennsylvania) that used Self-Controlled Interactive Learning Systems to teach reading skills. Standardized test scores for at-risk students are compared with other students; experimental and control groups using standard instruction are compared; and studies of…

Describes a study of ninth graders that investigated the effects of learner and program control over content review in science-related computer-assisted instruction (CAI). Results of posttests, continuing motivation measures, and attitude questions are discussed; and future research is suggested. (35 references) (LRW)