Critical flicker frequency and intelligence

Tests of verbal intelligence (Concept Mastery Test) and nonverbal intelligence (Raven's Advanced Progressive Matrices) showed nonsignificant zero-order correlations and a nonsignificant multiple correlation with critical flicker frequency (CFF), in 100 university students. Age-partialled correlations were even lower, and corrections for attenuation and restriction of range yielded unimpressive results. It was concluded that CFF has a negligible relationship to psychometric intelligence and is probably a poor tool in the investigation of the nature of g.     

The influence of chance and contingency factors on the vocational choice process of nonprofessional workers

The present study investigated the perceived influence of chance and contingency factors on the career choices of nonprofessional workers. The sample was composed of 447 female workers and 470 male workers. As part of a larger study the workers listed the factors that had influenced their choice of their first job, their present job, and their most satisfying job. They were also asked to consider their entire work history and note events, people, or personal inclinations which influenced their vocational decisions. The workers then rated each of 27 chance or contingency factors concerning the extent of influence (great, some, none) on their career choices. The results are examined and discussed relative to the perceived importance of chance and contingency factors on the career choices of nonprofessional workers. The implications of the results for vocational theory and career counseling are considered.     

Development of the concepts of energy conservation and entropy

Development of the concepts of energy conservation and entropy was studied in children between 5 and 15 years of age. Energy conservation, as illustrated by the operation of double and colliding pendulums, was not well understood until about 15 years of age. Understanding of entropy was dependent on the particular apparatus used. When illustrated by the gradual mixing of rolling marbles of different colors, entropy was understood by 9- to 15-year-olds. But when illustrated by the eventual equalization of water levels in two interconnected containers, entropy was not well understood until about 15 years of age. Errors on a problem used to illustrate the conservation concept could often be characterized by the misapplication of the entropy concept and vice versa.     

A multivariate comparison of the intellectual performance of black and white children matched on four demographic variables

This study investigated the performance of 285 matched pairs of Black and White children from the standardization sample on the 12 subtests and 3 IQ scales of the Wechsler Intelligence Scale for Children—Revised (WISC-R). The children were matched on four demographic variables found in a previous (Reynolds and Gutkin, 1979) study to be significantly related to WISC-R performance: sex, socioeconomic status as determined by the occupation of the head of household, region of residence in the U.S. and urban vs rural residence. Multivariate analysis of variance comparing performance across race on the 15 dependent variables revealed that Whites exceeded Blacks on all tasks except Digit Span—a test of rote memory. Results were also related to the evaluation of the Spearman hypothesis.     

QUANTUM COSMOLOGIES AND THE "BEGINNING"

Abstract. The cosmology proposed by Stephen Hawking has been understood as support for an atheistic stance, due mainly to its view of the nature of time in combination with the absence of explicit boundary conditions. Against such a view, this article argues that one might develop a theistic understanding of the Universe in the context of Hawking's cosmology. In addition, the quantum cosmologies of Andrej Linde and Roger Penrose are presented. The coexistence of different research programs and their implicit metaphysical views about the nature of quantum reality and time may have profound implications for philosophy and theology.     

Simple reaction time with very small imperative- stimulus probabilities

The simple reaction time was studied as a function of the probability of the delivery of the imperative stimulus which was or was not (randomly) delivered 1 sec after the warning signal. The probability of the imperative stimulus was varied much more extensively than in any of the previous studies; thus, the response speed with very small probabilities was of especial interest. The results obtained with five subjects suggested a quadratic relationship between the probability and the reaction time so that the latter appeared to be relatively independent of the former with very small probabilities.