Graduate School of Comprehensive Human Sciences, University of Tsukuba, Japan.
Faculty of Human Sciences, University of Tsukuba, Japan.
Ind Health. 2022 Oct 1;60(5):436-446. doi: 10.2486/indhealth.2021-0130. Epub 2021 Nov 25.
Although an increasing number of studies on psychological safety at workplaces has been conducted in both western and eastern countries, there are few empirically validated measures in Japan. Our purpose was to investigate the validity and reliability of the Japanese version of the Psychological Safety Scale. Japanese workers were invited to participate in online surveys at baseline and at one-month follow-up (N=320). The Psychological Safety Scale was translated into Japanese according to international guidelines. Social support at workplace, work engagement, organization-based self-esteem, organizational justice, and job satisfaction were measured. Cronbach's alphas and intra-class correlation coefficient (ICC) were examined for reliability, and its validity was tested by confirmatory factor analysis and correlational analyses. The results of the survey showed that respondents were 287 at baseline and 236 at follow-up. Cronbach's alphas of the Psychological Safety Scale were 0.91 (baseline) and 0.88 (follow-up), and ICC was 0.87. Confirmatory factor analysis demonstrated a marginally acceptable fit. Overall, the Japanese Psychological Safety Scale had moderate to strong correlations with other scales. In conclusion, the Japanese version of the Psychological Safety Scale had acceptable levels of reliability and validity, and may be applicable for use in Japanese workers.
尽管在西方国家和东方国家都有越来越多的关于工作场所心理安全感的研究，但在日本，很少有经过实证验证的测量方法。我们的目的是调查日本版心理安全感量表的效度和信度。日本工人应邀在基线和一个月随访时参加在线调查（N=320）。根据国际准则，将心理安全感量表翻译成了日语。测量了工作场所的社会支持、工作投入、基于组织的自尊、组织公平和工作满意度。考察了克朗巴赫α系数和组内相关系数（ICC）的信度，通过验证性因素分析和相关分析检验了其效度。调查结果显示，基线时有 287 名应答者，随访时有 236 名应答者。心理安全感量表的克朗巴赫α系数在基线时为 0.91，随访时为 0.88，ICC 为 0.87。验证性因素分析表明，拟合度尚可。总的来说，日本版心理安全感量表与其他量表有中度到高度的相关性。总之，日本版心理安全感量表具有可接受的信度和效度，可适用于日本工人。
