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Concurrent validity of the test of nonverbal intelligence with learning disabled children
Author(s) -
Hadd Frederick A.
Publication year - 1986
Publication title -
psychology in the schools
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 75
eISSN - 1520-6807
pISSN - 0033-3085
DOI - 10.1002/1520-6807(198610)23:4<361::aid-pits2310230408>3.0.co;2-u
Subject(s) - psychology , intelligence quotient , developmental psychology , spelling , wechsler intelligence scale for children , correlation , nonverbal communication , concurrent validity , learning disability , test validity , test (biology) , wechsler adult intelligence scale , psychometrics , cognition , psychiatry , paleontology , linguistics , philosophy , geometry , mathematics , internal consistency , biology
Results of the TONI, WISC‐R, and WRAT were compared for a sample of 66 learning disabled children: 51 males (32 white, 19 black) and 15 females (9 white, 6 black) whose mean age was 9–5 ( SD = 1–10). The mean score of the TONI was significantly different from the Performance IQ. Nonsignificant differences were found between the TONI and Full Scale IQ and between the TONI and Verbal IQ. Correlation coefficients between the TONI and WISC‐R ranged from a low of .35 for the Verbal IQ to .44 for both the Full Scale and Performance IQs. The correlation coefficients between the TONI and standard scores of the WRAT were .38, .27, and .23, for Reading, Spelling, and Arithmetic, respectively. Implications of these findings are discussed.