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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.
Peer reviewed Peer reviewed
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
The Emergence of Depressive Symptoms during Adolescence.
Peer reviewed Peer reviewed
Brooks-Gunn, Jeanne, Ed.; Petersen, Anne C., Ed. – Journal of Youth and Adolescence, 1991
Twelve papers on the emergence and maintenance of severe clinical depression and depressive symptoms during adolescence are presented. Topics include parental influences, epidemiological data, depressive and negative affect, hormonal effects, preadolescent symptoms, sex differences, longitudinal studies with rhesus monkeys, suicidal ideation,…
Descriptors: Adolescent Development, Adolescents, Classification, Cognitive Processes