Dev is a freelance web designer who has recently changed his work schedule to work entirely between 2:00 AM and 8:00 AM. He has also stopped attending his weekly running club meets and prefers to sleep during the day with blackout curtains drawn, communicating with clients only via email. A clinical psychologist is evaluating Dev's mental state and is considering using 'dysfunction' as a primary criterion for diagnosis.
Explain two weaknesses of using 'dysfunction' to diagnose Dev's mental health condition.
110 exam-style questions on Edexcel A Level Psychology Content, covering Diagnosis of mental disorders (4 Ds), Classification systems (DSM and ICD), Schizophrenia and one other disorder, Treatments for the two disorders, Individual differences, and Developmental psychology. Each one has a worked solution and a mark scheme showing where the marks go.