Mark G. Perlroth, MD
To the editors: I applaud your choice of topic for the 1 January 1991 issue of Annals. A discussion of the state of internal medicine is most timely—in fact, overdue—and deserving of study and commentary.
But I write not only to commend but to criticize. The lead article (1) reports results of a survey of the American College of Physicians in which the usable response rate was 57%. No mention is made of any attempts to validate the results against any truly random (that is, non-self-selected) sample. In other words, there is no assurance (nor even an attempt to measure)
Mark G. Perlroth. Survey Research. Ann Intern Med. 1991;114:706. doi: 10.7326/0003-4819-114-8-706_1
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Published: Ann Intern Med. 1991;114(8):706.
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