Shan-Shan Hung, Anne G. Fisher, Sharon A. Cermak; The Performance of Learning-Disabled and Normal Young Men on the Test of Visual-Perceptual Skills. Am J Occup Ther 1987;41(12):790-797. doi: 10.5014/ajot.41.12.790.
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The present study explored the discriminative validity of the motor-free Test of Visual-Perceptual Skills (TVPS) as an assessment for adults. The subjects were 26 learning-disabled and 26 normal young men. Overall, the subjects with learning disabilities made significantly more errors and took significantly more time on the total TVPS than did the normal subjects. The group with learning disabilities demonstrated significantly lower accuracy scores on four of the seven subtests and longer time scores on five subtests. Discriminant analysis revealed that the time score for Visual Sequential Memory and the accuracy score for Visual Closure were the two subtest scores that best discriminated between groups and, together, were able to correctly classify 84.6% of the subjects. The TVPS total accuracy score for the subjects with learning disabilities significantly correlated with their overall performance IQ but not with their verbal IQ. Their TVPS total accuracy scores also correlated with scores on Block Design, but not with scores on the Object Assembly or Picture Completion subtests of the WAIS-R. The results seem to indicate that the TVPS is valid as an assessment of visual-perceptual functions for young adult subjects. Recommendations for further study were made.
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