This document is a book review of "Bias in Mental Testing" by Arthur R. Jensen. Jensen discusses intelligence as a phenotypic construct. The problem of ethnic differences in phenotypic intelligence is emotionally charged, which makes rational consideration of the issues difficult. The reviewer disagrees with the author's predisposition…

The construct of general intelligence is discussed in the context of factor models, differential validity of tests, Piagetian tasks, heritability, social class, and race. The general factor is an abstraction resulting from genes, environmental pressures, and neural structures involved in cognitive or intellectual human behavior. (Author/RD)

The hypothesis that coping with novelty is a key aspect of intelligence is not supported by the data of Sternberg and Gastel. It is contended that these authors committed a common error by interpreting correlations involving difference scores without reference to the properties of the components of the difference. (SLD)

A reanalysis of Stephens' intercorrelations of Wechsler subtests, achievement tests, and Piagetian tasks was conducted. (EJ 055 112) Piagetian tasks contributed almost equally to the definition of the general factor in intelligence along with the Wechsler subtests and the achievement tests. Communality outweighed differences between intelligence…

The purpose of this research was to study the correlation between socioeconomic status and intelligence. The Project Talent Data Bank was used in the study. The measures of privilege/deprivation developed show some degree of differential abilities and the measures of intellectual privilege are almost cogeneric measures of general intelligence.…

The use of partial correlation methodology to control trait variance such as intelligence is criticized. Factor analysis is presented as the only methodology that can be used objectively and effectively with fallible measures to control trait variance. An example is presented. (Author/JKS)

Stephens et al. (EJ 055 112) committed a serious methodological error in holding chronological age constant in their IQ measures and allowing it to vary in their Piagetian developmental measures. This error is unrelated to differences in factor rotation methods used by these authors and was not answered in their reply. (CTM)

This collection of papers, concerned with the nature and theory of intelligence, forms part of a project to integrate test and factor theory with the empirical, functional relationships involving standard intelligence tests. The project will render more objective the use of factor analysis in personnel research. A definition of intelligence…

In order of importance, curriculum, motivation, academic ability, and teaching methods are described in this paper as principles affecting classroom learning that can lead to more effective instruction. Curriculum simply exposes students to appropriate content and subject matter. Educational research should concentrate on the evaluation of…

Intercorrelations of 10 successive years of measurement of height and intelligence are presented for separate samples of girls and boys from the Harvard Growth Study. Findings did not differ appreciably by sex, but significant differences between the sexes in the cross-correlations were found. (Author/RH)

When spatial ability was regressed on a measure of general intelligence in a large national sample of 12th graders, a bimodal distribution of spatial ability was found among low scoring students, suggesting two qualitatively different types of individuals. Characteristics of these students are discussed, and an organic impairment is suggested as…

Kirby and Das (EJ 182 444) dichotomized measures of individual differences and treated them as independent variables in an analysis of variance. Correlational analysis would have provided more powerful tests of their hypotheses. Interpretation of the dichotomized variables as independent, causal antecedents of their measures of intelligence would…

Preliminary factor analyses of predictor tests in advantaged and disadvantaged groups is recommended as a way of forming a priori expectations concerning validities of the predictors to guide both use and research. (Authors)

The value of examining a variety of behavioral, medical, and social phenomena as they relate to gradations in general intelligence is demonstrated. A method of uncovering group intelligence trends is presented that can enable policymakers and the public to apprehend the contribution of general intelligence to many socially important outcomes. (SLD)