Kenji, a young man who recently relocated from Japan to the UK, has spent the last six months confined to his bedroom, refusing to speak to others or seek employment, and experiencing profound feelings of emptiness. A UK clinical psychologist has diagnosed Kenji with major depressive disorder using the DSM-5. However, Kenji's family believes his condition is hikikomori, a culture-bound syndrome well-recognised in Japan. A second psychologist who assessed Kenji suggested his symptoms instead indicate the negative phase of schizophrenia or an avoidant personality disorder.
Discuss the reliability and validity of classification systems used in the diagnosis of mental health disorders. Refer to Kenji's case in your answer.
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.