Describes development of a causal model to test effects of scholastic ability, computing attitudes, and computing background of university undergraduates on use of a computer-assisted instructional system, PLATO-LDEC; on attitudes toward PLATO-LDEC; on computing attitudes after students' PLATO-LDEC experience; and on course grade. (Author/MBR)

This review of research on computer use in education focuses on the development of higher order thinking skills and the effects of programming instruction. Eight hypotheses are proposed to account for the general failure of the research to confirm the expectations, and a new programming language, Prolog, is described. (70 references) (Author/LRW)