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Science 9 April 1976:
Vol. 192. no. 4235, pp. 149 - 150
DOI: 10.1126/science.1257762
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Articles

Science, Vol 192, Issue 4235, 149-150
Copyright © 1976 by American Association for the Advancement of Science

articles

Introversion/extroversion, time stress, and caffeine: effect on verbal performance

W Revelle, P Amaral, and S Turriff

Time pressure and caffeine differentially affected the performance of introverts on verbal ability tests similar to the Graduate Record Examination. With time pressure and 200 milligrams of caffeine, the performance of introverts fell by 0.63 standard deviation, but extroverts by 0.44 standard deviation.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Yerkes-Dodson: A Law for all Seasons.
K. H. Teigen (1994)
Theory Psychology 4, 525-547
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Increased Sensitivity to Caffeine in Patients With Panic Disorders: Preliminary Evidence.
J.-P. Boulenger, T. W. Uhde, E. A. Wolff III, and R. M. Post (1984)
Arch Gen Psychiatry 41, 1067-1071
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Behavioral Effects of Caffeine in Children: Relationship Between Dietary Choice and Effects of Caffeine Challenge.
J. L. Rapoport, C. J. Berg, D. R. Ismond, T. P. Zahn, and A. Neims (1984)
Arch Gen Psychiatry 41, 1073-1079
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