This paper presents a description of four schools of thought on the nature of intelligence, some findings that have emerged from them, and an indication of how these findings reveal a common core of generalizations across the various schools. (Author/SJL)

Administered Wechsler Intelligence Scale for Children-Revised to 45 learning-disabled and 41 gifted Navajo elementary students. Interpreted performance according to Luria-Das Model of Simultaneous and Successive cognitive processes. Gifted and learning disabled students had disparate loadings for some subtests expected to involve Successive and…

The relationship between speed of information processing (SIP) and psychometric intelligence was investigated by giving 60 college students (22 males and 38 females) 2 choice reaction time (RT) tests (modified Hick paradigm) and Raven's Advanced Progressive Matrices. Results support an association between intelligence and SIP. (SLD)

This paper describes the development and empirical investigation of two new paper-and-pencil measures of elementary cognitive tasks (PP ECTs). In three empirical studies involving 333 adults, the PP ECTs proved reliable. They were substantially correlated with other measures of psychometric intelligence and they displayed convergent validity with…

Comparison of area and subtest scores on the Stanford Binet Intelligence Scale (Fourth Edition) for 15 autistic retarded children and 15 nonautistic retarded children found that the children with autism scored substantially lower in the verbal reasoning area and on the subtests of Comprehension and Absurdities than did the nonautistic children.…

The study investigated gender differences in resting EEG (in three individually determined narrow [alpha] frequency bands) related to the level of general and emotional intelligence. Brain activity of males decreased with the level of general intelligence, whereas an opposite pattern of brain activity was observed in females. This difference was…

The question is to what extent intelligence test-batteries prove any kind of empirical reference to common intelligence theories. Of particular interest are conceptualized tests that are of a high psychometric standard--those that fit the Rasch model--and hence are not exposed to fundamental critique. As individualized testing, i.e., a…

Children were tested on the WPPSI and Stanford-Binet and after three years they were tested on the WISC. Results indicate that the WISC scores were significantly higher than the two other tests. The results of the various subtests of the three tests are compared and discussed. (SE)

This paper provides an overview of the cognitive process analysis of tasks used to measure aptitude and intelligence. As an illustration of this approach, performance on inductive reasoning tasks such as series extrapolation and analogy problems is considered in terms of the factors that contribute to item difficulty and individual differences in…

A causal modeling system, using confirmatory maximum likelihood factor analysis with the LISREL IV computer program, evaluated the construct validity underlying the higher order factor structure of a given correlation matrix of 46 structure-of-intellect tests emphasizing the product of transformations. (Author/PN)

Determined if Wechsler Intelligence Scale for Children-Revised subtest patterns would differentiate the performance of emotionally disturbed and learning-disabled children. Subtests differentiated significantly between diagnostic categories. Learning-disabled children performed predictively poorer on block design, picture arrangement, and object…

The Wechsler Adult Intelligence Scale (WAIS) and 20 tests from the French Kit were administered to over 100 undergraduates. Analyses revealed ten factors: verbal comprehension, visualization, memory span, syllogistic reasoning, general reasoning, induction, mechanical knowledge, number facility, spatial orientation, and associative memory.…

This study attempted to identify the factors of intelligence associated with the solution of a Piagetian task. Liquid conservation and 18 psychometric tests which included subtests from the WISC, ITPA, Raven Matrices, Primary Mental Abilities, and others were administered to 133 first- and second-grade boys and girls. (MS)