Institutional Research Center, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
Int J Environ Res Public Health. 2021 Dec 8;18(24):12954. doi: 10.3390/ijerph182412954.
The 12-item psychosocial safety climate scale (PSC-12) has been used extensively in previous research, but its reliability and validity in a Japanese context are still unknown. We examined the psychometrics of the Japanese version of the PSC-12 (PSC-12J). The PSC-12J and scales on the relevant variables were administered to 2200 employees registered with an online survey company. A follow-up survey with 1400 of the respondents was conducted two weeks later. Internal consistency and test-retest reliability were examined via Cronbach's alpha and Cohen's weighted kappa coefficients, respectively. Structural, convergent, and known-group validities were examined using confirmatory factor analysis (CFA) and item response theory (IRT) analysis, correlation analysis, and Kruskal-Wallis test, respectively. Cronbach's alpha and Cohen's weighted kappa coefficients were 0.97 and 0.53, respectively. CFA based on the four-factor structure established in the previous literature showed an acceptable model fit. IRT analysis showed that each item was an adequate measure of the respondent's latent trait. Correlations of the PSC-12J with the relevant variables and distribution of scores by demographic characteristics were also observed in the theoretically expected directions, supporting the construct validity of the PSC-12J. Our findings establish the PSC-12J as a reliable and valid measure of the psychosocial safety climate construct in the Japanese context.
12 项心理社会安全气候量表（PSC-12）在先前的研究中被广泛使用，但在日本背景下其可靠性和有效性仍不清楚。我们检验了日本版 PSC-12（PSC-12J）的心理测量学特性。PSC-12J 及相关变量的量表被发放给了一家在线调查公司注册的 2200 名员工。两周后，对其中的 1400 名员工进行了后续调查。内部一致性和重测信度分别通过 Cronbach 的 alpha 和 Cohen 的加权 kappa 系数进行检验。结构、收敛和已知组有效性分别通过验证性因子分析（CFA）和项目反应理论（IRT）分析、相关分析和 Kruskal-Wallis 检验进行检验。Cronbach 的 alpha 和 Cohen 的加权 kappa 系数分别为 0.97 和 0.53。基于先前文献中建立的四因素结构的 CFA 显示出可接受的模型拟合度。IRT 分析表明，每个项目都是对受访者潜在特征的充分衡量。PSC-12J 与相关变量的相关性以及按人口统计学特征的分数分布也呈现出理论预期的方向，支持了 PSC-12J 的结构有效性。我们的研究结果确立了 PSC-12J 作为日本背景下心理社会安全气候结构的可靠和有效测量工具。
