This study examined the relative effectiveness of different types of computer feedback (both corrective and noncorrective) on student achievement. A total of 41 students in grades 9 and 10 comprised the two treatment groups. The subjects all interacted with a computer program written by the researcher. The first treatment group received corrective…

This study examined the effects of feedback (immediate, delayed, or no feedback) and the type of control (external or internal) on computer-assisted instruction (CAI), and also considered the influence on achievement of such factors as computer anxiety, self-concept, learning style, and gender. Subjects were 336 undergraduates, the majority of…

This study investigated the effects of audio and text density on the achievement, time-in-program, and attitudes of 134 undergraduates. Data concerning the subjects' preexisting computer skills and experience, as well as demographic information, were also collected. The instruction in visual design principles was delivered by computer and included…