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Development and psychometric validation of the trauma-informed care competency scale for nurses
Zhuo-Er Huang1, Qi-Feng Yi2, Xing Qiu3
1Department of Nursing, the Third Xiangya Hospital, Central South University, Changsha, China; Xiangya Nursing School, Central South University, Changsha, China.
Background:
Nurses' trauma-informed care (TIC) competency was a critical factor influencing the integration of TIC into routine practice. However, there is still an absence of culturally tailored and scientific instruments for comprehensive assessment of TIC competency.
Aim:
To develop and validate an instrument to measure the TIC competency for nurses.
Design:
A methodological study.
Settings:
Two comprehensive hospitals in Changsha, Hunan province.
Method:
The instrument was developed in 2 stages. In the first stage, items were developed based on the 4 R assumptions of TIC, guided by a scoping-style literature review and qualitative interviews with nurses. The Delphi method was employed to modify and screen the item pool. In the second stage, 600 nurses were recruited to select items and evaluate the psychometric validation. Separate samples were used for the exploratory factor analysis (EFA, n = 300) and confirmatory factor analysis (CFA, n = 300). Test-retest reliability was assessed (n = 52).
Results:
The newly developed TIC competency scale for nurses included 33 items categorized into four dimensions: realizing, recognizing, responding and resisting re-traumatization. The Cronbach's α coefficient of the scale is 0.956, with McDonald's ω coefficient of 0.957 and intraclass correlation coefficient of 0.846. The content validity at the scale-level index was 0.965. EFA identified four common factors, accounting for 64.278% of the cumulative variance. CFA demonstrated that the scale has strong structural validity.
Conclusions:
The TIC competency scale has strong reliability and validity and could be used to evaluate the TIC competency of nurses.
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