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An Australian validation of the Kaufman Brief Intelligence Test (K-BIT) with adolescents with an intellectual disability

Version 2 2024-06-04, 03:35
Version 1 2017-07-27, 11:58
journal contribution
posted on 2024-06-04, 03:35 authored by LS Webber, Jane McGillivrayJane McGillivray
The Kaufman Brief Intelligence Test (K-BIT; Kaufman & Kaufman, 1990) provides a relatively quick assessment of intelligence. In this study we assessed the validity and reliability of the K-BIT with an Australian sample of adolescents with an intellectual disability (N = 107). To examine criterion validity, K-BIT scores were correlated with scores on the Coloured Progressive Matrices (CPM; Raven, 1956; r = .52), and the Wechsler Intelligence Test for Children - Revised (WISC-R; Wechsler, 1974; r =.73-.75). Test-retest and split-half reliability of the K-BIT were also examined (r = .93 and .88 respectively). Finally, item analyses examined the difficulty and discriminability of individual items. The results revealed that the K-BIT composite score in general provides a valid and reliable estimate of intelligence for Australian adolescents with an intellectual disability, but that a higher standard error estimate should be used in interpreting scores of the overall composite and Matrices scores of the K-BIT for students with an intellectual disability within the age range of 13 to 17 years.

History

Journal

Australian psychologist

Volume

33

Pagination

234-237

Location

Chichester, Eng.

ISSN

0005-0067

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

[1998, John Wiley & Sons]

Issue

3

Publisher

John Wiley & Sons

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