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Humphreys, Lloyd G.; Eysenck, Hans J. – Intelligence, 1989
Three papers--comments, a reply to comments, and a rejoinder--discussing a conclusion about the nature of general intelligence based on the size loadings of a psychomotor test of discrimination reaction time are presented. The use of Spearman's "g" is the center of the controversy. (TJH)
Descriptors: Discrimination Learning, Estimation (Mathematics), Factor Analysis, Intelligence

Gildenmeister, Joan E.; Friedman, Philip – Perceptual and Motor Skills, 1978
Field independence, visual analysis, and spatial visualization were investigated and social communication skills were assessed in two groups of 25 first graders (chosen for either high or low verbal ability). (Author/PHR)
Descriptors: Cognitive Style, Communication Skills, Discrimination Learning, Elementary Education