モラルインジャリーのリスク評価を容易にする新しい評価プロトコルを開発(Moral injury can be devastating: new assessment protocol makes it easier to identify those at risk)

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2026-07-28 バース大学

英国バース大学の研究チームは、モラルインジャリー(道徳的傷つき)のリスクを簡便かつ高精度に評価できる新たなアセスメント・プロトコルを開発した。モラルインジャリーとは、自身または他者の行為が個人の倫理観や価値観に反すると感じた際に生じる深刻な心理的苦痛で、軍人だけでなく、医療従事者、救急隊員、介護職など強い倫理的葛藤に直面する職種でも問題となっている。新しい評価法は、従来の複雑で時間を要する質問票を整理・統合し、臨床や研究現場で実施しやすい形に改良したもので、モラルインジャリーの有無だけでなく、その重症度や関連する心理的影響も把握できる。これにより、支援が必要な人を早期に特定し、適切な心理的介入へつなげることが期待される。研究チームは、モラルインジャリーは心的外傷後ストレス障害(PTSD)とは異なる特徴を持つため、専用の評価手法が不可欠であると指摘しており、本プロトコルは今後、医療、軍事、災害対応など幅広い分野での活用が見込まれる。

<関連情報>

道徳的または心理的に苦痛な経験にさらされた英国の成人を対象とした、道徳的傷害尺度(MORIS)の設計と妥当性検証 The design and validation of the Moral Injury Scale in the UK adults exposed to morally or psychologically distressing experiences: MORIS

Victoria Williamson, Dominic Murphy, Daniel Leightley, Obioha C. Ukoumunne, Fatmanur Çimen, Neil Greenberg
European Journal of Trauma & Dissociation  Available online: 27 June 2026
DOI:https://doi.org/10.1016/j.ejtd.2026.100716

モラルインジャリーのリスク評価を容易にする新しい評価プロトコルを開発(Moral injury can be devastating: new assessment protocol makes it easier to identify those at risk)

Abstract

Objectives
Studies have found that moral injury (MI) can be easily missed in clinical assessments and most measures of MI have been developed for and with US military samples. As MI is increasingly recognised in non-military samples, existing scales may not be appropriate to civilian experiences.

Design
To design and validate the Moral Injury Scale (MORIS), a self-report measure of exposure to potentially morally injurious events (PMIEs), moral injury-related distress, and associated risk and protective factors, in UK samples pre-screened for reporting morally or psychologically distressing experiences.

Setting
UK general population.

Participants
We administered an initial set of 47 items to 592 participants and conducted exploratory factor analysis. The reduced MORIS was then administered to an independent sample of 382 participants and confirmatory factor analysis was conducted.

Primary outcome measures
The validity and performance characteristics of the MORIS were assessed against validated measures of mental ill health. Receiver operating characteristic (ROC) curves were used to calculate a likely cut off score for detecting conditions that are associated with moral injury.

Results

Analysis yielded factors for assessing exposure to PMIEs; time since event; MI-related distress; and risk and protective factors. Good convergent validity was evidenced against the measure of MI and mental health symptoms. Confirmatory factor analysis demonstrated a good fit for the model. ROC analyses suggested that a score of ≥18 (ROC 0.83; 95% CI 0.77 – 0.90) on the MORIS Distress subscale may indicate elevated levels of moral injury-related distress within this sample; however, this finding should be considered exploratory at this stage.

Conclusions
This study provides preliminary evidence supporting the reliability, unidimensional factor structure, and convergent validity of the MORIS among UK adults reporting morally or psychologically distressing experiences.

Data set information
Please see data availability statement.

Trial registration number
N/A

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