The reliability and predictive validity of the WISC-R was investigated with 46 Mexican-American children. Approximately a year and a half after the administration of the WISC-R, scores on the Iowa Tests of Basic Skills were collected. Results indicated that the WISC-R meets minimum requirements of reliability and predictive validity with…

The present study examined the reliability of the WISC-R subtests and IQ scales when administered to Mexican-American children. In an effort to extrapolate these findings to the individual child, this study also attempted to ascertain the standard errors of measurement for each subtest and IQ scale. (Author)

Under realistic individual testing conditions there is consistency between the factor structure of the Wechsler Intelligence Scale for Children-Revised (WISC-R) with Anglo and bilingual Mexican American children. This investigation failed to indicate any unfairness to the Mexican American child on the WISC-R. (Author)