Psychometric Characteristics of the WISC-R Performance Scale with Deaf Children

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Abstract
The WISC-R Performance Scale was administered to 59 prelingually deaf children; The internal consistency reliability of four of the subtests and the Performance IQ were assessed and found to be similar to the reliability reported by Wechsler (1974) with the standardization sample. Two aspects of criterion-related validity were computed. Concurrent validity as demonstrated by the correlation with the Hiskey-Nebraska Test of Learning Aptitude was found to be adequate. Predictive validity as defined by the correlation with achievement test results was also computed. Statistically significant correlations were found for six of the eight achievement areas. Implications for use are discussed.

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