This study examined the psychometric properties of the Steen Happiness Index (SHI)—a measure of authentic happiness designed for intervention research—in a sample of Brazilian security workers. The SHI has yet to be used in a Brazilian sample and has the potential to assess both eudaimonic and hedonic happiness in Brazil. The psychometric properties of the SHI were also compared with those of the Subjective Happiness Scale (SHS), a widely used happiness measure, using classical test theory and item response theory. Military police officers, civilian police officers, and military firefighters (N = 435) completed the SHI, SHS, and measures of well-being, optimism, and psychopathological symptoms. Exploratory factor analysis provided support for a one-factor SHI—rather than the three-factor structure found in previous research. The unidimensional SHI also better discriminated between low, medium, and high levels of happiness, and did not demonstrate a ceiling effect when compared with the SHS. Advantages and disadvantages of both scales are discussed.

这项研究在巴西安全工作者的样本中检查了 Steen 幸福指数 (SHI) 的心理测量特性——一种为干预研究而设计的真实幸福的衡量标准。SHI 尚未在巴西样本中使用，并且有可能评估巴西的幸福和享乐幸福。还使用经典测试理论和项目反应理论将 SHI 的心理测量特性与主观幸福感量表 (SHS) 进行了比较，主观幸福感量表是一种广泛使用的幸福感测量方法。宪兵、民警和军事消防员（N= 435) 完成了 SHI、SHS 以及幸福感、乐观和精神病理学症状的测量。探索性因素分析为单因素 SHI 提供了支持，而不是之前研究中发现的三因素结构。一维 SHI 也更好地区分低、中、高幸福水平，与 SHS 相比，没有表现出天花板效应。讨论了两种量表的优缺点。