Objective: Robust instruments to evaluate the ability of trauma-informed care among healthcare workers need to be developed, as this would help the implementation of trauma-informed care to prevent re-traumatization of patients. This study aims to assess the reliability and validity of the Japanese version of the Trauma-Informed Care (TIC) Provider Survey. A total of 794 healthcare workers were surveyed using a self-administered questionnaire, including the TIC Provider Survey, and six measures that were considered to be correlated with it. We calculated the Cronbach's alpha coefficient to investigate the internal consistency of each category of the TIC Provider Survey (knowledge, opinions, self-rated competence, practices, and barriers). Spearman's rank correlation coefficients were used to investigate the correlation between each category of the TIC Provider Survey, and other measures of construct validity.
Results: Cronbach's alpha coefficients of each category of the TIC Provider Survey were 0.40 (Knowledge), 0.63 (Opinions), 0.92 (Self-rated competence), 0.93 (Practices), and 0.87 (Barriers). The Spearman's rank correlation coefficients were small. We confirmed the reliability of the acceptable levels and examined the validity of modest or unacceptable levels of the Japanese version of the TIC provider survey among Japanese workers in a healthcare setting.
Keywords: Reliability; Scale; Trauma; Trauma-informed care; Validity.
© 2023. The Author(s).