臺式簡易客観的精神指標テスト（UBOM-4）の健常者を対象とした検者間一致度の検討

An Investigation on Degree of Consistency among Examiners in Conducting UBOM-4（Utena's Breif Objective Measure of 4Axes for Psychiatric Function and Energy）in Healthy Volunteers

抄録

　臺式簡易客観的精神指標テスト（UBOM-4）は精神機能の簡便な客観的評価法として考案された。本研究では健常成人20名を5名の検者が検査した場合の，5名の検者間の一致度を検証した。得られる4つの定量指標［心拍数変動数（PRD），物差し落とし距離（RCT），乱数度（DOR），平均乱数生成時間（MRT）］のうち3指標（RCT，DOR，MRT）については中程度の一致度が認められ，1つの定性指標（画型）についても97%の一致率が認められた。定量指標のうちPRDの一致度が低かったが，これは心拍数変動テストがストレス応答性を鋭敏に示す結果と考えた。UBOM-4検査を実施する際の手順と検者-被検者関係の工夫について提案した。

　We examined the inter-rater reliability for Utena's Brief Objective Measures of 4 Axes for Psychic Function and Energy（UBOM-4）which is a new brief test battery for evaluating psychic function. In the present study, 5 raters conducted UBOM-4 tests on 20 healthy volunteers. Based on the 5 raters' results, ICCs were calculated for the pulse rate difference（PRD）, ruler catching time（RCT）, degree of randomness（DOR）, and mean randomizing time（MRT）. The consistency of judgment on drawings in the Baum Test was represented by the percentage of consistent judgment among the 5 raters. The calculated ICCs indicated 3 quantitative indexes（RCT, DOR, MRT）showed substantial consistency, and for the Baum Test the calculated percentages displayed almost perfect consistency（97%）. PRD showed a slight consistency. We speculated the reason for low PRD consistency consists in its sensitivity reflecting the test situation. The authors proposed some procedures and conditions to improve inter-rater reliabilities of UBOM-4 to improve UBOM-4 use in clinical settings.