Document Type

Article

Disciplines

Psychology

Comments

Published in Pyschological Bulletin, Vol.106, No.2, pp.290-314 (Sept, 1989) at http://content.apa.org/journals/bul/106/2/290.html This article may not exactly replicate the final version published in the APA journal. It is not the copy of record. APA Website: http://www.apa.org/

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