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Abstract

The reliability of subtest composites corresponding to the 46 abilities and influences presented by Kaufman (1979) was examined for the WISC-III using standardization sample data at ages 6, 11, and 16. Recategorized subtests demonstrated consistently high reliability. Increasing composite reliability was associated with the number of member subtests and the inclusion of Verbal Scale subtests in a composite. Some age fluctuations in composite reliability were noted. A table containing composite reliability for the entire standardization sample and at three age levels is provided for the clinician's reference. Partial psychometric support for use of these composites in WISC-III profile analysis was demonstrated.

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References

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Reliability of WISC-III Subtest Composites

Abstract

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References