Abstract
A matched samples design was employed to compare the British versions of the WAIS (Wechsler, 1955; Saville, 1971) and WAIS-R (Wechsler, 1981; Lea, 1986) in terms of test difficulty. The WAIS yielded significantly higher IQs than the WAIS-R. The mean difference for Full Scale IQ was 8.2 IQ points, i.e. over half a standard deviation. Encouragingly for U.K. users of the Wechsler Scales, additional analysis suggested that the performance of the WAIS-R sample was consistent with an estimated U.K. population mean ∼ 100.
| Original language | English |
|---|---|
| Pages (from-to) | 427-428 |
| Number of pages | 2 |
| Journal | Personality and Individual Differences |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1990 |
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Crawford, J. R., Morrison, F. M., Jack, A. M., Cochrane, R. H. B., Allen, K. M., & Besson, J. A. O. (1990). WAIS vs WAIS-R in matched U.K. samples. Personality and Individual Differences, 11(4), 427-428. https://doi.org/10.1016/0191-8869(90)90228-J