Abstract

The cognitive components of subjective well-being can be measured with the Satisfaction with life scale (SWLS) and the Harmony in life scale (HILS), which both comprise five items each. The aim of this article is to abbreviate these scales and examine their psychometric properties and validity. Three datasets including test-retest data are used (N = 787; N = 860; N = 343). The two first datasets were already collected, whereas the third dataset included delivering the three-item scales (SWLS-3; HILS-3) together (in random order) with one shared instruction. The last study was pre-registered, including open data and code. The SWLS-3 and the HILS-3 demonstrate good psychometric properties, including very high internal consistency and item total correlations, strong test-retest reliability, where two-factor models of cognitive well-being tend to yield very good fit indices. Further, the scales demonstrate measurement invariance across time and gender. In fact, the three-item scales demonstrate as strong psychometric properties as compared with the five-item scales. Additionally, the scales demonstrate similar validity by yielding similar correlations to assessments of well-being, mental health problems and social desirability. Thus, the SWLS-3 and the HILS-3 can efficiently be used together with one shared instruction, without compromising (and in most aspects even yielding small improvements) the psychometric soundness of the scales.

摘要

主观幸福感的认知成分可以用生活满意度量表（SWLS）和生活和谐量表（HILS）来衡量，两者均包括五个项目。本文的目的是简化这些量表，并检查它们的心理计量特性和有效性。使用包括重测数据的三个数据集（N = 787； N = 860； N = 343）。已经收集了两个第一个数据集，而第三个数据集包括通过一条共享指令一起（以随机顺序）一起交付三个项目的量表（SWLS-3； HILS-3）。上一项研究已预先注册，包括开放数据和代码。SWLS-3和HILS-3具有良好的心理测量特性，包括非常高的内部一致性和项目总体相关性，强大的重测可靠性，认知幸福感的两因素模型往往会产生非常好的拟合指数。此外，量表显示出时间和性别的测量不变性。实际上，与五个项目的量表相比，三个项目的量表显示出较强的心理计量特性。此外，量表通过对幸福感，心理健康问题和社会期望的评估得出相似的相关性，从而证明了相似的有效性。因此，SWLS-3和HILS-3可以有效地与一条共享指令一起使用，而不会影响（在大多数方面甚至很小的改进）秤的心理健康度。与五项量表相比，三项量表显示出较强的心理计量特性。此外，量表通过对幸福感，心理健康问题和社会期望的评估得出相似的相关性，从而证明了相似的有效性。因此，SWLS-3和HILS-3可以有效地与一条共享指令一起使用，而不会影响（在大多数方面甚至很小的改进）秤的心理健康度。与五项量表相比，三项量表显示出较强的心理计量特性。此外，量表通过对幸福感，心理健康问题和社会期望的评估得出相似的相关性，从而证明了相似的有效性。因此，SWLS-3和HILS-3可以有效地与一条共享指令一起使用，而不会影响（并且在大多数方面甚至产生很小的改进）秤的心理健康度。