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  • Title: Comparison scan training and the matching and scanning performance of severely and profoundly mentally retarded students.
    Author: Lyon SR, Ross LE.
    Journal: Appl Res Ment Retard; 1984; 5(4):439-49. PubMed ID: 6524937.
    Abstract:
    This study investigated the effects of comparison scan training on the matching and visual scanning performance of severely and profoundly mentally retarded students. A match-to-sample-problem pretest was administered to 32 students, whose eye movements were recorded on videotape, and the 12 subjects who demonstrated at least minimal competence on the pretest task were matched on pretest performance and assigned to training (n = 6) or comparison (n = 6) groups. Training-group students were provided with visual comparison scan training, while the comparison group performed the same task but received no training. A posttest identical to the pretest followed. The training group was superior to the comparison group during training and showed a significant increase in correct responding from pretest to posttest, whereas the comparison group did not. Neither measures of scanning behavior nor the latencies of the choice response were related to matching performance or affected by the training procedure. Possible relationships among visual scanning, comparison scan training, and matching-task performance were discussed.
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