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The Effects of Primogeniture on Intellectual Capacity

The Effects of Primogeniture on Intellectual Capacity A statistical comparison of the I.Q.'s in 219 pairs of first- and second-born children shows a very slight but reliable difference in favor of second-born children. The median difference is +4.5 ± 1.16. From Psych Bulletin 21:12:01261. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Abnormal Psychology American Psychological Association

The Effects of Primogeniture on Intellectual Capacity

Willis, C. B.
Journal of Abnormal Psychology , Volume 18 (4): 3 – Jan 1, 1924
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Publisher
American Psychological Association
Copyright
Copyright © 1924 American Psychological Association
ISSN
0021-843X
eISSN
1939-1846
DOI
10.1037/h0070444
Publisher site
See Article on Publisher Site

Abstract

A statistical comparison of the I.Q.'s in 219 pairs of first- and second-born children shows a very slight but reliable difference in favor of second-born children. The median difference is +4.5 ± 1.16. From Psych Bulletin 21:12:01261.

Journal

Journal of Abnormal Psychology – American Psychological Association

Published: Jan 1, 1924

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