Details the development and system design of a computer-based instruction (CBI) program designed to provide tutorial training in diet modification as part of renal therapy and provides the results of a study that compared the effectiveness of the CBI program with the traditional lecture/laboratory method. (EAO)

Discusses an adaptive diagnostic test used as part of an instructional program in signed-number arithmetic on the PLATO system. Findings indicated that differences in prior and subsequent instructional methods affected the learning of more advanced materials and produced lower achievement scores on posttests. Thirty-two references are listed. (MER)

Describes a study to determine effects of computer-assisted instruction (versus a text mode of programed instruction) and locus of control on preservice elementary teachers' computer literacy achievement. Differences in test scores of externally controlled individuals favored CAI. There were no differences between treatments when internally…