The authors investigated the effects of student spatial ability, as measured by Raven's Progressive Colored Matrices (J. C. Raven, 1938) and type of instructional program on geometry achievement. Sixth-grade students worked through either 6 instructional activities in Geometer's Sketchpad (Key Curriculum Press, 1993), a dynamic geometry program,…

This study manipulated the timing and control of error feedback in problem solving and examined their effects on skill acquisition by 40 undergraduate students learning to program in the computer language Lisp under four error feedback conditions. These four conditions included two types of symbol-by-symbol feedback that vary in content, a…

This paper is a preliminary report of a pilot study done at the University of Northern Colorado in 1984 using PHOENIX, a mainframe computer based education (CBE) system in a teacher education program. The study deals with the instructional tutorial and a computer based test generation system related to those tutorials. Data on the physiological…

The cost effectiveness of four approaches to improving mathematics and reading performance of elementary school children is compared. Peer tutoring is found to be more cost-effective than computer-assisted instruction, and both are more cost-effective than reducing class size or increasing the length of the school day. (Author/JAZ)

Investigated the effects of group size and exposure time in the use of a commercially prepared tutorial program or drill-and-practice software by 168 fifth and sixth graders. Found that exposure time was related to students' scores on posttests. Results suggested a need to examine allocated time in microcomputer learning situations. (LB)