OCD & Related Disorders
Obsessive-Compulsive and Related Disorders (DSM-5-TR)
Intrusive obsessions and/or compulsive behaviors. Includes OCD, body dysmorphic disorder, hoarding, trichotillomania, and excoriation. ERP is the gold-standard psychotherapy.
Prevalence: ~2-3% lifetime for OCD
6 Therapeutic Approaches
Sorted by evidence tier: guideline-recommended first, then RCT-supported, then emerging/limited evidence.
Guideline-Recommended (2)
Cognitive-Behavioral
CBT
Aaron Beck · 1964
APA Div 12: Strong/Very Strong for multiple disorders. NICE: recommended for depression, all anxiety…
Cognitive-Behavioral
ERP
Victor Meyer · 1966
Effect: d = 1.13
~60-70% significant improvement
NICE: recommended for OCD. APA Div 12: Strong Research Support
RCT-Supported (3)
Emerging / Limited Evidence (1)
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