Because no single characteristic defines intelligence, there can be no adequate process-based definition of intelligence. In principle, a combination of many empirically derived measures into a single index, as in a Binet test, would be appropriate. In practice, many of the relevant characteristics are simply impossible to measure. (Author/RD)

Research has shown that differences among ordinary people in intelligence and personality depend equally on individual genetic variability and on differences in the environments that siblings experience within the same family, not differences in the neighborhood, school, and community environments. As of yet, there are no adequate theories to…

Intelligence is related to executive performance though different kinds of executive work seem to require differing intellectual abilities. To examine these different intellectual functions and their relationship to performance ratings, 208 male executives completed the School and College Ability Test (SCAT), the Abstract Reasoning Test, and three…

Detection differences between 16 mildly mentally retarded and 14 nonretarded students aged about 16 years were studied via the presentation of high, intermediate, and low stimulus organizations of target and distractor stimuli. Implications for explaining intelligence-related differences across a range of tasks are discussed. (SLD)

In order to ascertain the extent to which older persons' levels of behavioral functioning parallel their levels of intellectual functioning, 42 female patients, aged 61-99, of an outpatient comprehensive care geriatric clinic, completed the Wechsler Adult Intelligence Scale (WAIS), the Instrumental Activities of Daily Living Scale (IADL), the…

A brief historical resume outlining the relationship between economics, racism, and intellectual justification for racism begins this paper, which notes that the I.Q. argument is a racist ideology in exactly the same way that Christianity, Darwinism, and Equality have been systems of justifications for America's racism. It fits the definition of…

Two studies examined modifiability in intellectual functioning in older adults. The fluid-crystallized theory provided a theory base for the research. (Fluid intelligence follows a normative decline through adulthood, while crystallized intelligence remains stable or even increases.) In the first study thirty subjects (average age 69.2)…

Little has been researched about the professional artist's preferred style of thinking, his/her manner of acquiring and utilizing knowledge, and how it affects the learning process. This investigation used a revised method of naturalistic inquiry for the purpose of developing a research method that was responsive to the uniqueness of artistic…

Several common assumptions about human intelligence are challenged in this paper. The "bucket" theory of intelligence describes intelligence as a stable psychological characteristic which affects learning, and which, when accurately measured, predicts an individual's learning capacity. The authors reject the idea that people who have…

The scientific concept of intelligence has been heavily influenced by the technology of measurement. The variables which can be measured have been made the operational definition of intelligence. This approach differs from a deductive approach, in which a theory of cognition in general is used to derive the sorts of measurements that must be taken…

Confirmatory Factor Analysis was used to test first- and second-order factor models on cognitive abilities and their invariance across male and female samples. Subjects were a stratified random sample of 234 male and 225 female 15-year-old students in Singapore attending Secondary 3 (the equivalent of grade 9). Four first-order factors were found…

Differences in learning processes were studied in more versus less intellectually able undergraduate students. Thirty subjects were selected to represent a wide range of general and mathematical reasoning abilities, based on the following test scores: Necessary Arithmetic Operations and Vocabulary Test V2 from the Educational Testing Service ETS…

In previous studies of ethnic group bias in intelligence test items, the question of bias has been confounded with ability differences between the ethnic group samples compared. The present study is based on a conditional probability model in which an unbiased item is defined as one where the probability of a correct response to an item is the…

This study focuses on the effects of family size and spacing on intellectual, social, and personality development of children. The sample consisted of 533 suburban, middle class, large family (five or more) and small two child family children. The children, 233 boys and 300 girls, were teenagers attending either junior or senior high school.…