Am J Epidemiol 2003; 157:568-569.
Copyright © 2003 by Johns
Hopkins Bloomberg School of Public Health
LETTERS TO THE EDITOR |
THE AUTHOR REPLIES
Kansas Health Institute, 212 SW Eighth Avenue, Suite 300, Topeka, KS 66603.
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I thank Dr. Wartenberg and his colleagues for their comments (1). I appreciate their interest, but the concerns they raise dispute recommendations that were neither made nor implied in my commentary (2). Specifically, I did not advocate the use of undefined "epidemiologic methods" in lieu of exploratory factor analysis (EFA) to identify a unique