Describes a meta-analysis of 42 controlled evaluations on effectiveness of computer-based education (CBE) in secondary schools. Results indicate computer-assisted and managed instruction and CBE used with disadvantaged students was generally effective, while computer-enriched instruction was less effective in raising student examination scores.…

To determine whether individual differences in student achievement and learning rate are reduced or eliminated by mastery instruction, 166 navy trainees who completed a computer-managed course in basic electricity and electronics were cluster analyzed using 24 measures of cognitive characteristics. Discriminant analyses were computed between two…

Three adaptive models encompassing variations of instructional support, incentives, and context of presentations were developed and validated through eight separate studies which compared the teaching of statistics under computer-managed instruction or teacher-managed systems. Results indicate instructional support adaptations were effective, but…