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6. What symptoms does the DSM-5 require to diagnose schizophrenia?

  • 2 or more positive symptoms
  • both positive and negative symptoms
  • 2 or more negative symptoms

7. What symptoms does the ICD-10 require to diagnose schizophrenia?

  • 2 or more negative symptoms
  • both positive and negative symptoms
  • 2 or more positive symptoms

8. What is an example of a negative symptom?

  • Hallucinations
  • Avolition
  • Delusion

9. Who found high external reliability between ICD and DSM diagnoses?

  • Tienari et al
  • Jakobsen et al
  • Cheniaux et al
  • Osorio et al

10. What's the definition of positive symptoms?

  • Additional behaviours and experiences
  • Absence of usual behaviours and experiences

11. Who found high level of co-morbidity between schizophrenia and other conditions like depression and substance abuse?

  • Buckley et al
  • Tienari et al
  • Tarrier et al
  • Jakobsen et al

12. Who found low criterion validity between the ICD and DSM? (Each manual diagnosed the same sample differently).

  • Jakobsen et al
  • Cheniaux et al
  • Buckley et al
  • Osorio et al