Describes a study that was designed to demonstrate the effects of computer-based instruction (CBI) on undergraduates' achievement based on achievement status and mode of presentation. Treatments for experimental and control groups are explained, the alternating treatments design (ATD) methodology is discussed, and the personalized system of…

Discussion of the optimization of the instruction of concepts emphasizes theories of cognitive psychology. The development of instruments to record the mastery of concepts by fifth graders is described, variables of both instruction and learning are discussed, and a field experiment that compared the effectiveness of video directed instruction and…

Presents a meta analysis which examines results of 254 controlled evaluation studies that compared student learning in classes taught with and without computer-based instruction (CBI). Outcome measures are described, statistical analysis and effect size are discussed, and results are reported that show that CBI usually produces positive effects on…

Summarizes three research studies on text and screen density variables in a computer based instruction (CBI) lesson. The first two studies investigated the effectiveness of low density text on lessons taught in print and CBI modes; the third study examined learner preferences for different screen densities. (43 references) (Author/LRW)

Recent work in small-group computer-based training (CBT) reveals that the approach does not necessarily lead to higher achievement. Many of the studies, however, have methodological weaknesses. If proper guidance and structure can be provided to group members, using small group CBT should lead to higher achievement than individual CBT. (Contains…