Reply to Reliability, Not Overdiagnosis

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Letter to the Editor

Sir: Ghaemi suggests that in our study on the diagnosis of bipolar disorder we confused concepts of reliability and validity. In fact, we discussed issues of both reliability and validity. As we noted in the discussion section of the article: “Any study seeking to determine whether a psychiatric disorder is overdiagnosed will find that some patients with the index condition do not have it upon reinterview.

J Clin Psychiatry 2009;70(4):603-604