The First Factor Extracted Is an Unreliable Estimate of Spearman's "g": The Case of Discrimination Reaction Time. Reply and Rejoinder included.

Humphreys, Lloyd G.; Eysenck, Hans J.

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Peer reviewed

ERIC Number: EJ403254

Record Type: Journal

Publication Date: 1989

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The First Factor Extracted Is an Unreliable Estimate of Spearman's "g": The Case of Discrimination Reaction Time. Reply and Rejoinder included.

Humphreys, Lloyd G.; Eysenck, Hans J.

Intelligence, v13 n4 p319-28 Oct-Dec 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, Psychological Testing, Psychomotor Skills, Reaction Time, Spatial Ability, Visual Discrimination

Publication Type: Journal Articles; Collected Works - General; Reports - Evaluative

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Audience: N/A

Language: English

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