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R. A. Hicks, PhD; R. J. Pellegrini, PhD; E. A. Evans; J. D. Moore
Dept of Psychol San Jose State Univ San Jose, CA 95192

Arch Neurol. 1979;36(2):119-120.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

In a note in the ARCHIVES (33:664, 1976), Leviton and Kilty presented data that they claim supported Bakan's^1.2 hypothesis that left-handedness results from left-hemispheric brain injury associated with perinatal factors. In this letter, we shall discuss critically this issue and Leviton and Kilty's contribution to it and present data that have a direct bearing on the validity of Bakan's hypothesis.

In his original study, Bakan¹ found for male university students, that left-handedness is more likely to occur in the progeny of high-risk birth orders, ie, first and fourth (plus) born. In delineating the rationale for their research, Leviton and Kilty have, correctly, called attention to the fact that the studies^3.4 that have failed to replicate Bakan¹ were inadequately conceived because they both failed to consider sex as a separate variable. In their study, Leviton and Kilty measured the relationship between the birth order . . . [Full Text PDF of this Article]

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