Describes a study of undergraduates studying genetics that compared the effectiveness of a computer simulation used before and after formal instruction. Treatment of the experimental and control groups is explained, and results are reported which support the theory that the effectiveness of the simulation is dependent on the sequence of…

Describes study that investigated the roles of locus of control and learner control over sequencing of content and the ability of undergraduate students to locate and retain information in computer-based instruction. The correlation of grade point average with accuracy of retrieval and retention is also explored. (41 references) (LRW)