This investigation assessed the ability of the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) short forms to estimate both index and IQ scores in a large, mixed clinical sample (N = 809). More specifically, a commonly used modification of Ward's seven-subtest short form (SF7-A), a recently proposed index-based SF7-C and eight-subtest…

Both testlet design and hierarchical latent traits are fairly common in educational and psychological measurements. This study aimed to develop a new class of higher order testlet response models that consider both local item dependence within testlets and a hierarchy of latent traits. Due to high dimensionality, the authors adopted the Bayesian…

The use of accommodations for both instruction and assessment continues to be of great importance for students with disabilities. The purpose of this report is to provide an update on the state of the research on testing accommodations, as well as to identify promising areas of research likely to contribute to understanding of current and emerging…

Forensic clinicians have the option of employing well-validated structured interviews when conducting competency to stand trial (CST) evaluations to ensure adequate coverage of the three prongs delineated in "Dusky v. United States". This study evaluates the effects of feigning on the Evaluation of Competency to Stand Trial-Revised…

Considers both validity and reliability simultaneously in selecting the best short forms (SFs) of the Wechsler Adult Intelligence Scale-Revised (WAIS-R). Results indicate that incorporating reliability as a criterion has a dramatic impact on the obtained best SFs. (LLL)

Reports the validities and reliabilities of two short forms of the Wechsler Adult Intelligence Scale (Revised) (Vocabulary and Block Design, and Arithmetic and Picture Arrangement) for each of nine age groups, together with standard errors of estimate and measurement. Results support the use of these forms for their intended purpose. (BH)

Reports reliability data for Wechsler Subtest comparisons to supplement the data in the Wechsler Intelligence Scale for Children-Revised and Wechsler Adult Intelligence Scale-Revised manuals. Results indicated that the reliabilities of the differences between Wechsler Subtest scores are low enough to warrant the exercise of caution in interpreting…

The test-retest IQs of 50 patients were correlated. The patients were included in the sample only because they had been given the Wechsler Adult Intelligence Scale before. The interval between test and retest averaged almost two years. All test-retest correlations were .90 or better. (Author)

Examined relative efficacy of two short forms of Wechsler Adult Intelligence Scale-Revised (WAIS-R) with respect to accurate subtest profile scatter (N=50). Subtest scores of both split-half Satz-Mogel short form and criterion referenced Modified WAIS-R (WAIS-RM) short form were found to differ significantly from full-length WAIS-R subtest scores.…

Administered three Wechsler adult intelligence scales to 72 undergraduates and tested the quality of means, variances, and covariances, utilizing subtest scale scores and IQs. Results indicated that the three scales were not parallel. Generally, the subtest scaled scores exhibited less similarity across the three scales than the IQ estimates.…

Performed orthogonal and oblique factor analysis using the Wechsler Adult Intelligence Scale-Revised (WAIS-R) standardization sample (N=1,880). Analysis of the variance components for each subtest at every age level revealed a substantial proportion of subtests at a wide range of age levels evidenced high or intermediate levels of specific…

Discusses the significance of confidence intervals around IQ scores based on a misleading interpretation of the standard error of measurement terms provided in the Wechsler Adult Intelligence Scale-Revised (WAIS-R) manual. Presents standard error values and a table for determining the abnormality of verbal and performance IQ discrepancies.…

The reliability and stability of the Full Scale IQ scores of retarded adolescents and young adults of three Wechsler Scales were measured. (Author)

Assessed Wechsler Adult Intelligence Scale-Revised test-retest stability for 21 psychiatric and neurological patients. Test-retest interval ranged from 2-144 weeks (x=38 weeks). Subtest stability coefficients were highly significant, yet range of gain or loss for any single individual was comparatively large. Gain or loss was associated strongly…

Reviews the administrative features, uses, development, standardization, reliability, and validity of the Multidimensional Aptitude Battery (MAB), a new group intelligence test designed to be a paper-and-pencil parallel to the Wechsler Adult Intelligence Scale-Revised (WAIS-R). (BL)