@article{ref1,
title="Errors in assigning grades based on tests of finite validity",
journal="Research quarterly for exercise and sport",
year="1989",
author="Hopkins, W. G. and Manly, B. F.",
volume="60",
number="2",
pages="180-182",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0270-1367",
doi="10.1080/02701367.1989.10607434",
url="http://dx.doi.org/10.1080/02701367.1989.10607434"
}