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Hannafin, Robert D; Sullivan, Howard J. – Educational Technology Research and Development, 1995
Describes a study that investigated the effects of learner control and program control, and lean and full modes of instructional programs, on the achievement, use of options, time on task, and attitudes of high-ability and low-ability students from grades 9 and 10 during computer-assisted instruction. (LRW)
Descriptors: Ability Grouping, Academic Achievement, Analysis of Variance, Computer Assisted Instruction