Yale-Brown Obsessive Compulsive Scale

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The Yale-Brown Obsessive Compulsive Scale ( Y-BOCS for short ) is "a semi-structured interview to assess the severity of thinking and acting compulsions "

construction

In the first step, the contents of the obsessive-compulsive disorder are asked using a symptom checklist. The severity of the compulsory content recorded in the first step is only recorded separately in a second step. To assess the severity, questions are asked regarding:

  1. the time required
  2. Impairment in everyday tasks,
  3. subjective psychological stress,
  4. attempted resistance,
  5. Success in resistance.

These five points are asked separately for the recorded obsessions and compulsions. A value between 0 and 4 can be assigned to each of these 10 questions. The values ​​are then added together to form a total. Then there are still questions that concern both the need to think and act at the same time. However, these questions are not included in the evaluation because test quality criteria for the questions have not yet been sufficiently met. These questions relate to insight, avoidance, difficulty in making decisions, sense of responsibility, slowness, doubt, overall severity, overall improvement and the reliability of the information.

The Y-BOCS is used in psychiatric drug studies on obsessive-compulsive disorder. In these studies, a total value of 16 with simultaneous thought and action compulsions is assumed as the “cut-off point” for pronounced symptoms. If there are only compulsions to think or only to act, a total of 10 is sufficient.

Test quality criteria

Investigations on test quality criteria are mainly available for the English-language version and are rated as good. In a publication from 1991, however, it says: "The psychometric analysis of the German-language version of the Y-BOCS is still pending".

Individual evidence

  1. ↑ a b c I. Hand and H. Büttner-Westphal: The Yale-Brown Obsessive Compulsive Scale (Y-BOCS). A semi-structured interview to assess the severity of the compulsions to think and act . In: behavior therapy . tape 1 , no. 3 , 1991, pp. 223-225 , doi : 10.1159 / 000257972 .