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 Bowlby's work on attachment, Ainsworth and the Strange Situation, Research into deprivation, Research into privation, Research into day care, Cross-cultural research into attachment, Autism, 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.
