Leo has recently been diagnosed with a psychiatric condition by a private practitioner using the DSM-5. However, when his NHS GP reviews his case, they refer to the ICD-11 and express doubts about the initial diagnosis. Leo's partner, Sam, is a student nurse and is now concerned about the reliability of Leo's clinical diagnosis.
Explain whether Sam's concerns about the reliability of Leo's diagnosis are justified.
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.