Validation of Doppelt's WAIS short form with a clinical population.

Clayton, Hugh; Payne, Dan

doi:10.1037/h0046854

Cited by 15 publications

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“…Moreover, sample size is often poor in view of the decisions to be taken. Thus, for example, Clayton and Payne (1959) found Doppelt's SF satisfactory for "organics" (N = 27) with a SF-FS correlation of .96, but regarded a correlation of .92 for "mental defectives" (N -28) as a possible exception to its validity. In general, it would require much larger samples than have yet been used, or much larger differences in SF-FS correlations than have usually been found, to detect reliable differences in validity between that shown by a standardization group and that of a clinical group, or to detect differences between alternative SFs, or between alternative estimation methods.…”

Section: Methodological Problemsmentioning

confidence: 99%

Short-form tests: A methodological review.

Levy¹

1968

Psychological Bulletin

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Studies are reviewed in which some well-known clinical tests of intelligence are abbreviated to save testing time. Serious methodological problems are evident in most of these studies: samples are often small, unrepresentative, and heterogeneous in composition; and short-form validity is systematically overestimated. It is argued that present statements of the problem do not lead to a unique solution. The general requirement that an abbreviated test should save time while retaining maximum validity cannot be satisfied in the absence of a statement about the relative utility of "time saved" and "validity lost." Future research should benefit by adopting a decision-theoretic approach to the validation of short-form tests.

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Section: Methodological Problemsmentioning

confidence: 99%

Short-form tests: A methodological review.

Levy¹

1968

Psychological Bulletin

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“…Some have found that the "best" combination varies according to the particular clinical group (Cotzin & Gallagher, 1950;Jastak, 1950;Sterne, 1957). A few investigators (Clayton & Payne, 1959;Doppelt, 1956;Fisher & Shotwell, 1959;Himelstein, 1957) have con-425 cerned themselves with methods of deriving the Full Scale score from the reduced number of subtests and have suggested specific scoring modifications to achieve more accurate prediction with different clinical groups.…”

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confidence: 99%

Long search for a short WAIS: Stop looking.

Luszki¹

1970

Journal of Consulting and Clinical Psychology

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The time-consuming aspect of the Wechsler intelligence scales has prompted their frequent abbreviation in clinical practice. The use of selected items from each subtest has been a particularly attractive method of shortening because it reduces administration time by about S0% and yet gives scores for each subscale. To test the reliability of scores obtained from this method, 200 protocols of the Wechsler Adult Intelligence Scale (WAIS) were rescored according to short-form procedure and reliabilities based on split-half correlations obtained. It was hypothesized that one could predict the reliability of the shortened WAIS on the basis of the Spearman-Brown formula, and that in testing, as in other fields, "you get what you pay for." Results confirmed these hypotheses-a short form is not an adequate substitute for the full WAIS.The Wechsler intelligence scales are among the most widely used and highly regarded tests in clinical practice. They are also among the most time consuming, and many kinds of abbreviations have been used. One extensive study (Holmes, Armstrong, Johnson, & Ries, 1965), for example, showed that 90% of the Wechsler Adult Intelligence Scales (WAISs) were given in abbreviated form. In an attempt to retain the virtues of these tests, but shorten administration time, much research has been directed to establishing the reliability and validity of various methods of abbreviation.A review of the literature suggests a fourfold typology of test abbreviation. Shortening has been achieved through the elimination of 1 The coding and computer work in this study were made possible by a grant from the Veterans Administration Central Office. The data were collected while all the authors were affiliated with the Ann Arbor Veterans Administration Hospital. Appreciation is expressed to the Psychological Corporation for making available information on how reliability coefficients were computed in the original WAIS standardization study.The statements and conclusions of the authors are the result of their own study and do not necessarily reflect the opinion or policy of the Veterans Administration.2 Requests for reprints should be sent to Margaret B, Luszki,

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“…Since the publication of the Wechsler Adult Intelligence Scale (1955), sporadic attempts have been made to investigate the validity of Doppelt's claim (1956) that the full scale IQ could be predicted in a normal population with reliability and validity from the administration of only four subtests (Arithmetic, Vocabulary, Block Design and Picture Arrangement). Clayton and Payne (1959) found correlations ranging from *92 to *97 in a clinical population coniposed of various types of mentally disturbed adults, including organic, functional and personality disorders. McKerracher, et nl.…”

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confidence: 95%

Validation of a Short Form Wisc With Clinic Children

McKERRACHER

Watson

1968

Brit J of Edu Psychol

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SUMMARY.One-hundred-and-twentyseven childrcn testcd at a child guidance clinic were given a full scale WTSC in the course oi their examination. Prorated IQs were calculated from four of the ten sub-tests (Arithmetic, Vocabulary, Picture Arrangement and Block Dcsign). Thcsc prorated IQs correlatcd +0.96 with full scale IQ and gave accurate indications of level of performance on the full scalc. This shortened version is least suited for young children and children in the IQ range 70-89.

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Validation of Doppelt's WAIS short form with a clinical population.

Cited by 15 publications

References 0 publications

Short-form tests: A methodological review.

Short-form tests: A methodological review.

Long search for a short WAIS: Stop looking.

Validation of a Short Form Wisc With Clinic Children

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