Comparison of the Test of Nonverbal Intelligence and Wechsler Intelligence Scale for Children - Revised in Rural Native American and White Children

The Test of Nonverbal Intelligence (TONI) and Wechsler Intelligence Scale for Children—Revised (WISC—R) were administered to 46 Native American and white students who were suspected by their classroom teachers of having learning handicaps. Pearson correlations between these sets of IQs ranged from .42 (TONI and WISC—R Performance) to .89 (WISC—R Verbal and Full Scale).