Hi all,
Perhaps a naive question here, but I can't find a reference that
addresses it...
How big should a study of a diagnostic test be? Retrospectively, I guess
confidence intervals would address this, but is there a calculation analagous
to a power analysis that would apply to figure out the size of the groups
beforehand?
Thanks in advance,
John
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John Epling, MD
Family Practice Residency Program
US Naval Hospital Jacksonville, Florida
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