The Learning Disability Screening Questionnaire (LDSQ), a brief screening tool for intellectual disability, was originally validated against the Weschler Adult Intelligence Scale, Third Edition (WAIS-III), which was superseded by the Weschler Adult Intelligence Scale, Fourth Edition (WAIS-IV) in the United Kingdom in 2010. This study examines the…

IQ test scores should be corrected for high stakes decisions that employ these assessments, including capital offense cases. If scores are not corrected, then diagnostic standards must change with each generation. Arguments against corrections, based on standards of practice, information present and absent in test manuals, and related issues,…

A number of studies have used mindfulness-based interventions to influence the behavior of people with intellectual disabilities, to improve their quality of life, and to reduce challenging behavior. The present review critically evaluates 18 studies and assesses the clinical and academic impact of their findings. Strengths identified included…

Intellectual assessment is central to the process of diagnosing an intellectual disability and the assessment process needs to be valid and reliable. One fundamental aspect of validity is that of measurement invariance, i.e. that the assessment measures the same thing in different populations. There are reasons to believe that measurement…

Comparison of performance of nine groups of mentally retarded subjects (N=236) on the Wechsler Intelligence Scale for Children Scale-Revised (WAIS-R) indicated the WAIS-R produced higher IQs than the WISC-R and that this disparity increased as WISC-R IQ decreased. (Author/DB)

Evaluated with 50 mentally retarded adults (IQ range 38 to 69) was the efficacy of several short forms of the Wechsler Adult Intelligence Scale. (DB)

Six short forms of the WAIS were compared as to their accuracy for estimating full scale IQs in a mentally retarded population. (Author)

Wechsler Adult Intelligence Scale (WAIS) patterns can be tied feasibily to personality descriptions. A method is presented for the actuarialstudy of WAIS patterns. (Author/DEP)

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

Investigated the relaionships among the Peabody Picture Vocabulary Test Revised (PPVT-R) alternate forms and the relationship of each PPVT-R form with the Wechsler Adult Intelligence Scale-Revised (WAIS-R). All correlations with both forms of the PPVT-R were significant. PPVT-R mean scores did underestimate significantly all WAIS-R mean scores.…

Score differentials between the revised Wechsler Intelligence Scale for Children (WISC-R) and the Wechsler Adult Intelligence Scale (WAIS) were investigated in 25 possibly mentally handicapped adolescents (10 white, 15 black). Each S was individually administered both the WISC-R and the WAIS. Results supported the hypothesis that for mentally…

Sixteen-year-old EMR children were administered the WAIS and WISC-R in counterbalanced order to determine the comparability of the two assessment instruments. The WAIS was found to yield significantly higher scores. Results suggest differences between the two instruments among children of subnormal intelligence. (Author)