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…

Data from a national survey of microcomputer uses in schools are used to demonstrate differences in access to and uses of computers by students. Factors examined include race, socioeconomic status, sex, achievement, and ability level. Also discussed are inequality and inequity and the need for additional research on computer impact. (RP)