Environmental explanation for OCD

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    • What evidence supports the environmental explanation for OCD?
      Cromer (2007) found that over 50% of people with OCD had experienced past trauma, and the severity of OCD symptoms was positively correlated with the severity of the trauma.
    • What is the diathesis stress model?
      Diathesis: biological vulnerability
      Stress: environmental trigger
      This model suggests that to develop a mental disorder e.g. OCD, a person needs to have both a genetic vulnerability and an environmental stressor.