Douglas N. Jackson

Evaluation of Group and Individual Forms of Embedded-Figures Measures of Field-Independence 1

(1950) Embedded-Figures Test (EFT) ; second, to study the roles of various response determinants, including the influence of memory, color, and item format upon individual consistencies in the extraction of embedded figures; and third, to appraise relationships between performance on group and individual embedded-figures tests and selected cognitive and personality measures. Interest in studying perceptual field-independence and its ramifications in personality theory, development, and cognition has grown steadily since the appearance of a report describing a decade of research by Witkin and his associates (Witkin et al., 1954). At

Desirability Judgments as a Method of Personality Assessment

THE primary purpose of this study is to report results of the preliminary investigation of a novel method of personality assessment, one which makes use of printed verbal items, but which does not depend upon self-report. The usefulness of this method-an assessment of consistent individual points of view reflected in desirability judgments of a set of personality inventory items-will be appraised in the context of a problem of predicting a criterion of social conformity. Related aims are: (a) to explore properties of items which contribute to the predictive validity of different points of view in judgments; (b) to evaluate the relative effectiveness in personality assessment of desirability judgments and responses by the same Ss to the same set of items;2 and (c) to report data bearing on the validity of a method for assessing individual differences in social conformity with an efficient group procedure. While the effects of item desirability have long been recognized

Dynamic spatial performance and general intelligence

Abstract A computerized video-game-like dynamic spatial ability measure and a paper-and-pencil group test of intelligence were administered to 94 university students. The purpose of the study was threefold: (a) to evaluate the reliability of the dynamic spatial measure; (b) to investigate the extent to which the dynamic spatial measure is saturated with variance associated with traditional measures of fluid and crystallized intellectual ability; and (c) to explore the possibility that dynamic computer based performance measures define factors that are distinct from those associated with traditional paper-and-pencil measures. The number of times the participant hit a moving target served as the dependent variable for the dynamic spatial measure. Number of hits proved to be correlated with Performance IQ, but was not significantly correlated with Verbal IQ. Maximum likelihood factor analysis revealed that the dynamic spatial measure did not load substantially on a factor of general intellectual ability but provided additional evidence that it is related to a performance component.

The study in brief.

Ontario can more cost-effectively meet its electricity needs and environmental objectives by returning to reliance on a well-designed market, with truly independent institutions and long-term price signals for new capacity on a technology-neutral basis.