Maguire, TessaDaffern, MichaelWilletts, GeorginaMcKenna, Brian2025-06-052025-06-052024-10Nursing & Health Sciences, ISSN: 1441-0745 (Print); 1442-2018 (Online), Wiley, 26(4). doi: 10.1111/nhs.131671441-07451442-2018http://hdl.handle.net/10292/19274Mental health nurses are often responsible for assessment/management of inpatient aggression. Validated instruments such as the Dynamic Appraisal of Situational Aggression (DASA), can aid risk assessment. However, limited attention has been paid to evaluating nurses' ability to administer risk assessment instruments. An entrustable professional activity may offer way of evaluating risk assessment clinical activities. DASA trainers' perceptions of the value and utility of an EPA were explored via collection of data through focus groups, with 17 participants from six countries. Thematic analysis was conducted to analyze the data. Three themes were interpreted: (1) DASA trainers‐a way of knowing and being (2) An EPA‐something you did not know you need until you see it; (3) The DASA‐EPA supports the need for training and importance of integrity in assessment. Trainers engaged in innovative ways to ensure training is suitable and responsive to needs of nurses and their setting. Participants understood how an EPA could be used to evaluate DASA administration, monitor DASA use, provide feedback, and highlight the importance of training to ensure best practice.© 2025 The Author(s). Nursing & Health Sciences published by John Wiley & Sons Australia, Ltd. Open Access. CC BY-NC-ND 4.0 Attribution-NonCommercial-NoDerivatives https://creativecommons.org/licenses/by-nc-nd/4.0/1110 Nursing1117 Public Health and Health ServicesNursing4205 Nursing4206 Public healthentrustmentinterventionmental health nursingpsychiatric nursingrestrictive practicesrisk assessmentJournal ArticleOpenAccess10.1111/nhs.13167