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Stability of WISC‐R scores in a juvenile forensic sample
Author(s) -
Haynes Jack P.,
Howard Rodney C.
Publication year - 1986
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(198605)42:3<534::aid-jclp2270420322>3.0.co;2-d
Subject(s) - psychology , wechsler intelligence scale for children , intelligence quotient , wechsler adult intelligence scale , developmental psychology , clinical psychology , cognition , psychiatry
The temporal stability of WISC‐R IQ Scale and subtest scores was examined in a Juvenile Court sample comprised primarily of neglected youth ( N = 36). Stability coefficients were calculated for an average test‐retest span of more than 2 years. WISC‐R IQ Scale subtest scores were found to be stable to a degree comparable with WISC‐R standardization data despite the considerably longer test‐retest interval. Stability coefficients were .88 for Verbal IQ, .86 for Performance IQ, and .93 for Full Scale IQ. Subtest stability coefficients range from .49 to .82; many coefficients are equal to or greater than .70. No practice effects were apparent.