Question 14 marks
Question
Sarah is always thinking about germs. At work she eats lunch alone as she believes this will protect her colleagues. She always washes her hands for 15 minutes in very hot water. She feels better after this, but after 45 minutes she wants to wash again. When Sarah gets home, she washes her clothing, shoes and coat. One day, when Sarah had sat next to a colleague, she could not sleep that night as she was convinced that he would get ill. Explain how Sarah meets the diagnostic criteria for obsessive-compulsive disorder (OCD). [4]
Mark scheme
1 Sarah is always thinking about germs. At work she eats 4 1 max for reference to Sarah’s obsession/belief = lunch alone as she believes this will protect her colleagues. germs, protect colleagues, colleague gets ill. She always washes her hands for 15 minutes in very hot water. She feels better after this, but after 45 minutes she 1 max for reference to Sarah compulsion – washing wants to wash again. When Sarah gets home, she washes hands for 15 mins/very hot water, washing clothing, her clothing, shoes and coat. One day, when Sarah had sat shoes, coat. next to a colleague, she could not sleep that night as she was convinced that he would get ill. 1 max for reference to persistence/time-consuming = always thinking about, takes up to at least an hour a day Explain how Sarah meets the diagnostic criteria for (15 min every 45). obsessive-compulsive disorder (OCD). 1 max for explain why obsession is irrational. Award 3–4 marks for a detailed answer with clear understanding of how Sarah fits the diagnostic criteria for OCD. 1 mark for explain that the compulsion acts to reduce Award 1–2 marks for a basic answer with some understanding of the anxiety created by the obsession. how Sarah fits the diagnostic criteria for OCD. 2 max for reference to impairment in life (couldn’t sleep, Diagnostic criteria ICD-11 sitting alone at lunch). Presence of persistent obsessions/compulsions Obsessions are repetitive and persistent that are Allow reference to both ICD and DSM guides. intrusive/unwanted Compulsions are repetitive behaviour or rituals Do not credit ‘obsessions and compulsions’ on its own Obsessions and compulsions are time-consuming or result in as in the question. significant distress/impairment in personal, family, social, educational, occupational, or other important areas of The response must identify both obsessions and functioning. compulsions from the stem to be awarded full marks. 1 Example: DSM-5 is creditworthy Sarah fits the diagnostic criteria for OCD as she is experiencing Presence of obsessions and/or compulsions. obsessions and compulsions. One of her obsessions is thinking Obsessions are recurrent/persistent thoughts that are about germs. (1) This is something Sarah thinks about intrusive/unwanted – thoughts are neutralised with some frequently, so it is persistent. (1) In addition, Sarah engages in other thought/action. compulsions which include washing her hands for 15 minutes in Compulsions are repetitive behaviours/mental acts that very hot water. (1) Sarah’s behaviour is repetitive and/or the individual feels driven to perform in response to an ritualistic (e.g. 15 minutes of hand washing and/or washing her obsession or according to rules that must be applied clothing, shoes and coat). rigidly. The compulsion is aimed at preventing/reducing When she washes her hands, she does feel better, however her anxiety; however, these behaviours are excessive. anxiety returns, and she has to wash her hands again which is Obsessions and/or compulsions are time-consuming or time-consuming and excessive. (1) Her obsessions and cause significant distress or impairment in social, compulsions are having a negative effect on her job as she is occupational, or other important areas of functioning. spending time washing her hands as well as feeling distressed with her thoughts about germs. (1) She is also missing out on socialising with her colleagues at lunchtime as she has to sit alone. (1) The other negative effect she is experiencing is not being able to sleep at night if she accidentally touches someone. (1) Other appropriate responses should also be credited.