Two clinical psychologists, Dr. Vance and Dr. Al-Jamil, independently assess a patient who presents with lethargy, social withdrawal, and feelings of worthlessness. Dr. Vance diagnoses the patient with Major Depressive Disorder, whereas Dr. Al-Jamil diagnoses them with Schizoid Personality Disorder.
Explain two reasons why diagnostic classification systems, such as the DSM or ICD, may lead to such inconsistent diagnoses.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions 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, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
