The investigation of interactions between the abilities of stimulus discrimination and simple learning and two instructional variables (discrimination difficulty and degree of overlearning) with 27 mentally retarded adolescents found an interaction between stimulus discrimination and the number of words presented at one time for learning…

Describes methods for item construction for computer-based instruction (CBI). Use of a rational set generator (RSG) in presenting an adaptive sequence of items to the learner is described; a model matrix of a computer-based RSG is presented; concrete and defined concepts are discussed; and rule using is explained. (Four references) (LRW)

Because disabled learners may profit from procedures using gradual stimulus change, this study utilized a microcomputer to investigate the effectiveness of stimulus equalization, an error reduction procedure involving an abrupt but temporary reduction of dimensional complexity. The procedure was found to be generally effective and implications for…

Three experiments examined the perception of a three-way voicing contrast by monolingual speakers of English. The results demonstrate that the perceptual mechanisms used by adults in categorizing stop consonants can be modified easily with simple laboratory techniques in a short period of time. (Author/PN)

Describes a study in which preschool children, enrolled in a Head Start Program in Texas, tested computer-assisted instruction facilitating visual discrimination. The study, in which a TRS-80 Model III displayed alphabetical characters, showed that four-year-olds are able to learn simple visual discrimination tasks from a computer. (JJD)

In two studies with 50 male and 50 female undergraduates, differences in learning highly interfering paired-associate discrimination tasks were compared with or without visual mediational cues and with aural cues only. Visual mediational instruction reduced interference between similar signals and facilitated their association with the correct…

Describes the theoretical backgrounds and empirical findings of three experimental studies in which computer-based response-sensitive strategies were investigated using concept learning tasks. The strategy applied focused on discrimination learning, generalization learning, and classification skill development in concept learning. A general…

This study evaluated the effectiveness of a multimedia computer-based instructional program with four middle school students with moderate/severe mental retardation in establishing match-to-sample skills and generalizing those skills to the natural setting (a grocery store). In vivo probes found mean and median duration to find target items…