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The diagnostic validity of mental health diagnoses in children

The diagnosis of attention deficit hyperactivity disorder (ADHD) requires a clinical review of the child, collecting evidence from multiple sources for a problem affecting the child’s performance, and applying a diagnostic checklist, such as that provided by the Diagnostic and Statistical Manual (DSM) of the American Psychiatric Association. This checklist has been operationalised in the Conners Comprehensive Behavior Rating Scales, which provide a score for the likelihood of the diagnosis of ADHD.