The actual process of rating the global assessment of functioning scale

Keita Yamauchi, Yutaka Ono, Kunihiro Baba, Naoki Ikegami

研究成果: Article

24 引用 (Scopus)

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The Global Assessment of Functioning Scale (GAF) was developed for the overall assessment of psychological, social, and occupational functioning. While the advantage of the GAF lies in this comprehensiveness, questions have been raised on whether clinicians rate appropriately. To clarify this issue, the actual process of how clinicians assign GAF scores was investigated. A total of 2,462 inpatients of 19 psychiatric hospitals in Japan were assessed by their primary psychiatrists using the following rating scales: GAF, Brief Psychiatric Rating Scale (BPRS), World Health Organization Psychiatric Disability Assessment Schedule (DAS), and physical Activities of Daily Living (ADL) index. A tree-based model analysis (also referred to as Automatic Interaction Detector [AID] or Classification and Regression Tree [CART]) was used to construct a statistical model with the GAF score as the dependent variable. The statistically best-fitted tree to predict the GAF score is as follows. The first split is based on the "conceptual disorganization" score in the BPRS, followed by splits based on DAS item scores, such as "conversation" and "underactivity." The tree model obtained suggests that Japanese clinicians judge the level of global functioning by integrating the information on both the severity of psychiatric symptoms and the level of impaired behaviour and social functioning. This logic structure was clinically acceptable and agreed well with the concept of the GAF.

元の言語English
ページ(範囲)403-409
ページ数7
ジャーナルComprehensive Psychiatry
42
発行部数5
DOI
出版物ステータスPublished - 2001 1 1

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

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