The Diagnostic and Statistical Manual of Mental Disorders, commonly referred to as the DSM, has been psychiatry’s “bible” since 1952. As a clinical psychology graduate student in the early 2000s, I was trained on the 4th edition. We spent a lot of time discussing which diagnosis best suited each client. It was assumed to be critical to know whether a client had social anxiety vs. depression vs. generalized anxiety, for example, because the appropriate treatment supposedly depended on making an accurate differential diagnosis. Once the diagnosis was determined, I then used a Cognitive........

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