Discusses a computer-assisted instruction study that examined the impact of group composition on student achievement, time on task, and group interactions when completing integrated learning system (ILS) math activities in cooperative pairs. The study paired elementary school students homogeneously or heterogeneously based on ability. (Author/LRW)

Discussion of digital audio in computer-based training (CBT) focuses on a study at the University of Central Florida that was conducted to determine whether the addition of audio to CBT had positive effects on undergraduates' cognitive achievement levels and to analyze its effect on time required to complete a lesson. (14 references) (LRW)