The genetic and environmental factor structures of intellectual abilities in 5-year-old Dutch twins were examined. Six subtests of the RAKIT, a Dutch intelligence test, were administered to 209 twin pairs. The subtests were categorized as either verbal or nonverbal. The genetic covariance structure displayed a two-common factor structure including specific factors to account for subtest residua...

PURPOSES To translate and adapt the Clinical Evaluation of Language Functions--4th Edition (CELF-4) to Brazilian Portuguese. METHOD One hundred and sixty normal language development school children between the ages of seven and ten, half from public schools and the other half from private schools, both located on the east side of São Paulo. RESULTS CELF-4's translation and adjustment to Bra...

BACKGROUND Attention-deficit/hyperactivity disorder (ADHD) is a common behavioral and neurocognitive disorder in school-age children. Methylphenidate (MPH) is the most frequently prescribed CNS stimulant for ADHD. The aim of this study is to evaluate the changes in intelligence quotient and domains of neurocognitive function after long-term MPH treatment of Taiwanese children with ADHD. METHO...

This investigation extended work on the Wechsler Adult Intelligence Scaled-Revised (WAIS-R) to the WAIS-III by determining how allotments of scaled-score points change with age, and to evaluate WAIS-III performance in terms of the Horn-Cattell constructs of crystallized and fluid intelligence. The age norms for the 14 individual WAIS-III subtests indicate that additional scaled-score points are...

Wechsler Intelligence Test for Children-IV core subtest scores of 472 children were cluster analyzed to determine if reliable and valid subgroups would emerge. Three subgroups were identified. Clusters were reliable across different stages of the analysis as well as across algorithms and samples. With respect to external validity, the Globally Low cluster differed from the other two clusters on...

background and aim: auditory processing disorders may have detrimental consequences on a child’s life, if undiagnosed and untreated. the multiple auditory processing assessment (mapa), as a valid model, has been introduced for central auditory processing assessment and diagnosis in school children. the purpose of this study was to design and evaluate the persian version of mapa for auditory pro...

BACKGROUND/AIMS Measuring and predicting Alzheimer's disease (AD) progression is important in order to adjust treatment and allocate care resources. We aimed to identify a combination of subtests from the Consortium to Establish a Registry for Alzheimer's Disease Neuropsychological Battery (CERAD-NB) that best correlated with AD progression in follow-up as well as to predict AD progression. M...

Individual differences in cognitive decline during normal aging need further delineation. The purpose of this study was to find the score dispersions in the WAIS-III subtests at different ages. Norms presented in the Administration and Scoring Manual [Wechsler, D. (1997). WAIS-III: Administration and scoring manual. San Antonio: The Psychological Corporation] were used. The WAIS-III was standar...

Short forms (SF) of the Wechsler Intelligence Scale have been developed to enhance its practicality. However, only a few studies have addressed the Wechsler Intelligence Scale Revised (WAIS-R) SFs based on data from patients with schizophrenia. The current study was conducted to develop the WAIS-R SFs for these patients based on the intelligence structure and predictability of the Full IQ (FIQ)...

[Purpose] The purpose of this study was to examine the effects of a physical activity program on cognitive function and ADLs in elderly people with mild dementia. [Subjects and Methods] Both groups (n=60) participated in a cognition program three times a week for 30 minutes each time over an eight-week period. In addition, the experimental group (n=30) underwent a physical activity program for ...