Optimizing Obsessive-Compulsive Symptom Measurement With the Yale-Brown Obsessive-Compulsive Scales-Second Edition

Area of Science:

• Psychiatry
• Clinical Psychology
• Behavioral Science

Background:

• The Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) is a standard tool for assessing obsessive-compulsive disorder (OCD).
• The Yale-Brown Obsessive-Compulsive Scale-Second Edition (Y-BOCS-II) was developed to refine symptom severity evaluation and improve the inclusion of avoidance behaviors.

Purpose of the Study:

• To demonstrate the enhanced capabilities of the Y-BOCS-II through case studies.
• To highlight the Y-BOCS-II's effectiveness in assessing symptom fluctuations and avoidance in severe OCD.
• To show the Y-BOCS-II's consistency with the original Y-BOCS for milder cases.

Main Methods:

• Presentation of three clinical case studies.
• Evaluation of Y-BOCS-II's ability to detect symptom severity changes.
• Assessment of systematic incorporation of avoidance variables.
• Comparison of Y-BOCS-II with Y-BOCS for mild to moderate symptom presentations.

Main Results:

• The Y-BOCS-II effectively captures symptom severity fluctuations in severely ill patients.
• Avoidance behaviors are systematically and more accurately incorporated into ratings with the Y-BOCS-II.
• Strong convergence between Y-BOCS-II and Y-BOCS was observed for patients with mild to moderate symptoms.

Conclusions:

• The Y-BOCS-II provides a more comprehensive assessment of obsessive-compulsive disorder, particularly in severe presentations.
• A method is described for obtaining both Y-BOCS and Y-BOCS-II scores from a single administration, ensuring data comparability.
• The Y-BOCS-II enhances clinical utility and research consistency in OCD assessment.