@article{ref1,
title="Biorhythms and highway crashes. Are they related?",
journal="Archives of general psychiatry",
year="1978",
author="Shaffer, J. W. and Schmidt, C. W. Jr and Zlotowitz, H. I. and Fisher, R. S.",
volume="35",
number="1",
pages="41-46",
abstract="Biorhythm, a theory that purports to identify periods of increased individual susceptibility to accident or misfortune on the basis of recurring biological cycles, is currently enjoying world-wide popularity. In view of the implications of such a theory for both public health and safety, the present study was undertaken as an empirical test of its validity. Using data from 205 carefully investigated highway crashes (135 fatal; 70 nonfatal) in which the drivers were clearly at fault, the authors computed specific points in drivers' biorhythm cycles at which the accidents occurred. The observed frequencies of accidents occurring during so-called critical and minus periods were then compared with the frequencies to be expected on a chance basis alone. The results provided no evidence for a relationship between purported biorhythm cycles and accident likelihood.<p /><p>Language: en</p>",
language="en",
issn="0003-990X",
doi="",
url="http://dx.doi.org/"
}