Items of JSS-8.

The construct of justice sensitivity has four perspectives that capture individual differences in the strength of reactions to injustice when becoming a victim of injustice (victim sensitivity), when witnessing injustice as an outsider (observer sensitivity), when passively benefitting from an injustice done to others (beneficiary sensitivity), or when committing an injustice (perpetrator sensitivity). Individual differences in these four justice sensitivity perspectives are highly relevant in moral research. With just eight items in total, the Justice Sensitivity Short Scales–8 (JSS-8) are a very efficient way to measure the four perspectives. JSS-8 was initially constructed in German (Ungerechtigkeitssensibilität-Skalen–8, USS-8) and later translated into English. In the present study, we empirically validated this English-language adaptation in a heterogeneous quota sample from the UK. The results show that the psychometric properties (i.e., reliability, validity, standardization) of JSS-8 are good, and that they are comparable with those of the German-language source version. Because of the invariance of loadings, intercepts, and residual variances, researchers can compare manifest scale statistics (i.e., means, variances) of JSS-8 across the UK and Germany. JSS-8 is thus particularly suitable for measuring justice sensitivity in various research areas with constraints on assessment time and questionnaire space.

公正敏感性（justice sensitivity）这一构念包含四种视角，用以捕捉个体在面对不公正情境时的反应强度差异：当自身成为不公正行为的受害者时（受害者敏感性）、作为旁观者目睹不公正发生时（旁观者敏感性）、被动受益于他人遭受的不公正时（受益者敏感性），以及自身实施不公正行为时（施害者敏感性）的反应差异。上述四种公正敏感性视角下的个体差异在道德研究中具有重要价值。
仅含8个题项的公正敏感性简版量表-8（Justice Sensitivity Short Scales–8, JSS-8）是测量这四种视角的高效工具。该量表最初以德语编制（命名为不公正敏感性量表-8，Ungerechtigkeitssensibilität-Skalen–8, USS-8），后续被翻译为英文版本。本研究针对来自英国的异质配额样本，对该英文改编版进行了实证验证。
研究结果表明，JSS-8的心理测量学特性（即信度、效度与标准化程度）表现优异，且与德语原版量表的特性相当。由于因子载荷、截距与残差方差均具备测量不变性，研究者可对比英国与德国样本中JSS-8的显式量表统计量（即均值、方差）。因此，JSS-8尤其适用于评估时长与问卷空间受限的各类研究领域中的公正敏感性水平。