@article{ref1,
title="Objective measurement of the independent variable: a neglected methodological aspect in community-based behavioral research",
journal="Journal of abnormal child psychology",
year="1974",
author="Wodarski, John S. and Feldman, R. A. and Pedi, S. J.",
volume="2",
number="3",
pages="239-244",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-0627",
doi="",
url="http://dx.doi.org/"
}