This study of young men from two-child families shows that birth-order effect and level of ability were not influenced by length of interval between firstborn and secondborn. (MP)

A reevaluation of a number of experiments suggests that normal and retarded persons differ on short-term memory tasks from the time of initial stimulus exposure. The hypothesis that memory differences are due to differential encoding as a result of more adequate rehearsal by the normal subjects is unacceptable. (Author/BW)

Correlations with Binet IQ in the ITPA normative sample were corrected for restricted intelligence range. The corrected correlation for the Psycholinguistic Quotient is as high as that between the WISC and the Binet, a finding that raises a serious question about the construct validity of the ITPA. (Author)

Regular booklet and puzzle forms of the Raven Coloured Progressive Matrices were administered to 70 deaf elementary students to determine the effects of testing-the-limits procedure. (Author/CL)

The Lorge-Thorndike Intelligence Test was found to be effective in screening 275 fifth grade students for learning disabilities. (CL)

Hirschi and Hindelang's (1977) causal model in which IQ is linked to delinquency by a set of school-related variables is examined, using Costner's multiple indicator procedure. (Author)

Describes a study of level of intellectual development displayed by a population of Australian primary school education students at the time of entry to college. Results agree with United States research which indicate that a significant proportion of high school and college students is not at the level of formal operations, an idea contrary to…

The author examines the evolutionary and neural roots of a triune intelligence comprised of a primal mind, an emotional mind, and a rational mind. A simple brain model and some definitions of unfamiliar behavioral terms are included. (Author/MA)

The effect of test-wise behavior on mental ability and achievement test performance was investigated. When test-wise and test-naive college students were instructed in test-taking skills, both groups demonstrated significant gains in test wiseness. While instruction did not affect test performance, the test-wise subjects performed more…

Results show that the mean number of Occupational Aptitude Patterns (OAP's) generated for a sample of mentally retarded and boarderline intelligence students is significantly greater for the Nonreading Aptitude Test Battery (NATB) than for the General Aptitude Test Battery (GATB). (DEP)

Indicates that IQ ranking is the most significnat factor affecting Draw A Person test performance by male subjects. IQ rankings were not found to significantly influence drawings by females. (Author/DEP)

The Wechsler Intelligence Scale for Children Revised (WISC-R) was administered to 34 elementary students scoring "gifted" on the Otis, Iowa, and SRBCSS (Scale for Rating Behavioral Characteristics of Superior Students). Results indicated a combination of the Otis, Iowa, and SRBCSS was moderately effective in predicting the Full Scale…

Presents a study of a theoretical confluence model which predicts the effects of birth order, child spacing and family size on intellectual development. The fit of this model was tested on samples of families with biological and adopted children. (JMB)