Background: Assessment of intelligence and executive function (EF) is common in complex neuropsychiatric practice. Although previous studies have shown that EF and intelligence are related, it is unknown whether these constructs relate to one another in a similar manner across different ability groups (mild intellectual disability, borderline…

We examined whether the General Factor of Personality (GFP) is related to the "g" factor of cognitive ability using data from the Vietnam Experience Study which randomly sampled 4462 Vietnam War veterans from a total sample of about five million Vietnam era army veterans. Exclusionary criteria included passing a fitness test, achieving a…

A total of 19 graduate students enrolled in a graduate course conducted 6 consecutive administrations of the Wechsler Intelligence Scale for Children, 4th edition (WISC-IV, Canadian version). Test protocols were examined to obtain data describing the frequency of examiner errors, including administration and scoring errors. Results identified 511…

Background: Half of pediatric-onset OCD cases remit by adulthood. Studies have demonstrated that initial response to pharmacotherapy, age of onset, prominent hoarding symptoms, and the presence of comorbid tic disorders are associated with long-term outcome. Our goal was to examine the association between childhood performance on…

Background: The purpose of this study is to evaluate the relationship between brain tumour location and core areas of cognitive and behavioural functioning for paediatric brain tumour survivors. The extant literature both supports and refutes an association between paediatric brain tumour location and neurocognitive outcomes. We examined…

A link between pre-morbid intelligence and all cause mortality is becoming well established, but the aetiology of the association is not understood. Less is known about links with cause specific mortality and with morbidity. The aim of this study is to examine the association between intelligence measured in adolescence and a broad range of health…

There is scientific and popular dispute about whether there are sex differences in cognitive abilities and whether they are relevant to the proportions of men and women who attain high-level achievements, such as Nobel Prizes. A recent meta-analysis (Lynn, R., and Irwing, P. (2004). Sex differences on the progressive matrices: a meta-analysis.…

Used psychiatric, neurological, psychiatric/neurological, and normal subjects to evaluate the relations between the Wonderlic and the Wechsler Adult Intelligence Scale in each sample. Found close relations in all cases, suggesting the value of additional attention to the Wonderlic Personnel Test as a brief measure of intelligence. (ASuthor/KS)

The WISC-R, PIAT, and DAM were examined to ascertain relationships among the three instruments. Correlations indicate that information yielded by the PIAT may be obtained through WISC-R results, while the DAM may be tapping other abilities not adequately assessed by either of the other two measures. (Author)

Two nested structural models are developed to determine whether test-session behaviors affect the manner in which intelligence is measured or influence the constructs being measured. Results indicate that test-session behaviors play a larger role influencing the mechanisms of measurement than on the constructs of intelligence. (Author/EMK)

This paper reports the results of a normative study of the 60-item version of the Boston Naming Test (BNT) in a group of 371 native Dutch-speaking Flemish children between the ages of 6 and 12 years. Analysis of test results revealed that BNT performance was significantly affected by age and gender. The gathered norms were shown to be…

After consideration of the drawbacks of such psychometrically derived theories of cognitive abilities as those of Guttman, Cattell, and Guilford, appeal is made to E. B. Hunt's "distributive memory" model and A. Newell's concept of the "production system" as possible bases for developing an alternative theory. Such a theory of…

Studied concurrent validity of the Luria-Nebraska Neuropsychological Battery-Children's Revision (LNNB-C) in learning disabled children categorized according to Verbal and Performance IQ differences. Found no significant differences between the three groups, thus failing to support the validity of the LNNB-C in discriminating between learning…

Cognitive development during each of the major stages identified by Piaget is characterized by abilities to solve progressively more complex tasks (e.g., changes in the object concept during the sensori-motor stage, and in conservation of amount, weight, and volume during the concrete operational stage). Several theorists have suggested that these…

Problem statement: Professional education is the principle means of the developing the human resource. Students who do not perform well in professional courses are not in any way better than those who do not have professional knowledge, because their chances of employment and efficient working are bleak. The present study attempted to examine…