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Validity of the TONI-2 with deaf and hard of hearing children
J A Mackinson1, I W Leigh, L Blennerhassett
1Department of Psychology, Gallaudet University, Washington, DC, USA.
Abstract:
The test of Nonverbal Intelligence, 2nd edition (TONI-2) is a quick, practical measure of cognitive functioning. Its concurrent, construct, and predictive validity as an instrument and its utility with deaf and hard of hearing children were explored in this study. Results obtained from research with 27 deaf and hard of hearing children of elementary school age indicated a positive, moderate correlation between the TONI-2 IQ and the Wechsler Intelligence Scale for Children, 3rd edition (WISC-III), Performance IQ, supporting concurrent validity. Construct validity was established by significant correlations between the TONI-2 and five of six WISC-III subtests. The TONI-2 had predictive value for Stanford Achievement Test (SAT) spelling and mathematical problem-solving and reasoning tasks.