WISC-R profiles were compared for 52 subsequently incarcerated and 52 subsequently probational delinquents evaluated after adjudication but before judicial commitment. Each sample exhibited a reliable within-group Performance IQ elevation. The two groups did not differ on Verbal subtest means assessed by Hotelling's two-sample test. However, between-group differences were observed among Performance subtests. It was concluded that effects of incarceration did not account for the elevation of Performance IQ in either sample of adjudicated delinquents. Also, intellectual differences between delinquent subgroups could not be attributed to confounding of incarceration and probation.
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References
1.
MatarazzoJ. D.Wechsler's Measurement and appraisal of adult intelligence. (5th & enl. ed.) Baltimore: Williams & Wilkins, 1972.
2.
ReppucciN. D.ClingempeelW. G.Methodological issues in research with correctional populations. Journal of Consulting and Clinical Psychology, 1978, 46, 727–746.
3.
WinerB. J.Statistical principles in experimental design. (2nd ed.) New York: McGraw-Hill, 1971.
