Many health professionals believe that attention disorders such as ADD and ADHD are being over-diagnosed. It is predicted that 60% of the diagnoses are incorrect. What are the odds of a diagnosis being incorrect?

Question

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The odds of an event are calculated as the probability of the event occurring divided by the probability of the event not occurring. If 60% of diagnoses are incorrect, then 40% are correct. The odds of a diagnosis being incorrect are 0.60/0.40 = 1.50.

Many Health Professionals Believe That Attention Disorders Such as ADD