scores at high levels of adaptive functioning will have poorer precision (i.e., higher SEMs) than those at low levels. SUMMARY. The Vineland–II was designed to be an easily used, standardized measure of key domains of adaptive behavior–Communication, Daily Living Skills, and Socialization–that play a prominent role in the diagnosis of mental retardation and other developmental disabilities. The...

Previous neuropsychological studies of patients diagnosed clinically and cytogenetically as Turner's syndrome have indicated, on the basis of the Wechsler Intelligence Scales and the Benton Visual Retention Test, that these patients possess a specific cognitive defect in space-form perception (Shaffer, I960; Money, I963). The Wechsler test has also shown that a relative difficulty with numbers,...

AIM To examine whether duration of breast feeding has any effect on a child's cognitive or motor development in a population with favourable environmental conditions and a high prevalence of breast feeding. METHODS In 345 Scandinavian children, data on breast feeding were prospectively recorded during the first year of life, and neuromotor development was assessed at 1 and 5 years of age. Mai...

Background and Aims: We examine the relationship between individual differences and cognitive development in order to address the question of whether variability in each might be due to common mechanisms. In two experiments, we compare the cognitive profiles of groups of younger and older children matched on overall mental age (MA) using standard tests of intelligence (British Abilities Scales-...

BACKGROUND Irish educational psychologists frequently use the Wechsler Intelligence Scale for Children - Fourth UK Edition (WISC-IVUK ; Wechsler, 2004, Wechsler Intelligence Scale for Children-Fourth UK Edition, London, UK, Harcourt Assessment) in clinical assessments of children with learning difficulties. Unfortunately, reliability and validity studies of the WISC-IVUK standardization sample ...

WAIS-R Verbal-Performance IQ difference scores for Ward's (1990) seven subtest short form and the complete WAIS-R were examined in patients with lateralized and diffuse lesions. For both versions, the expected Performance > Verbal pattern was observed in the right hemisphere lesion group, while no summary score differences were seen in the left hemisphere group. Verbal-Performance IQ discrepanc...

The present study examined the incremental validity of Wechsler Adult Intelligence Scale-4th Edition (WAIS-IV; Wechsler, 2008a) factor index scores in predicting academic achievement on the Wechsler Individual Achievement Test-2nd Edition (WIAT-II; Psychological Corporation, 2002a) and on the Wechsler Individual Achievement Test-3rd Edition (WIAT-III; Wechsler, 2009a) beyond that predicted by t...

A previous study on the underlying structure of the Wechsler intelligence test (WISC-R; [Wechsler, D. (1974). Manual WISCR: Wechsler intelligence scale for children—Revised. New York: Psychological Corporation]), using smallest space analysis (SSA) [Guttman, L., and Levy, S. (1991). Two structural laws for intelligence tests. Intelligence, 15, 79–103] had indicated a threedimensional cylindrica...

Correlations on subscales of Wechsler IQ tests and the Revised Beta Examination were obtained for biologically related and unrelated individuals in 18 1 adoptive families in the Texas Adoption Project. Scores were also available for many of the birth mothers of the adopted children. In general, correlations were higher for biologically related individuals, suggesting the importance of genetic i...

The relative usefulness of two digit span (DS) variables in detecting negative response bias, as defined by below cut-off performance on the Test of Memory Malingering (TOMM), was examined among primarily middle-aged military veteran outpatients who were judged clinically to be at increased risk for displaying negative response bias on cognitive testing. Digit span variables included DS Age Sca...