High level of preferences for routines is an indicator of psychological vulnerability in older adults. However, the psychometric properties of the Preferences for Routines Scale (PRS) initially validated in a small selected sample of older adults revealed a low Cronbach's α (.50) in the general elderly population. The present study aims to improve the PRS using the data from the "AMI" and "PAQUID" population-based studies. Among 718 older persons, the most discriminative items are identified using item response theory methodology. A short form of the PRS (PRS-S) included five of the ten items of the original scale and showed improved internal consistency and test-retest reliability. The factors associated with the PRS-S are similar to those found in previous studies. Norms are provided according to gender and educational level. The reduction of the number of items tends to facilitate its administration and promote its use in both clinical and epidemiologic research contexts.

中文翻译：

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常规偏好简表的验证：老年人的规范。

对日常生活的高度偏好是老年人心理脆弱性的一个指标。然而，习惯偏好量表 (PRS) 的心理测量特性最初在选定的一小部分老年人样本中得到验证，结果表明，一般老年人群的 Cronbach α (.50) 较低。本研究旨在使用来自“AMI”和“PAQUID”人群研究的数据来改进 PRS。在 718 名老年人中，最具辨别力的项目是使用项目反应理论方法确定的。PRS 的简写形式 (PRS-S) 包括原始量表 10 个项目中的 5 个，并显示出改进的内部一致性和重测信度。与 PRS-S 相关的因素与先前研究中发现的因素相似。根据性别和教育水平提供规范。项目数量的减少倾向于促进其管理并促进其在临床和流行病学研究环境中的使用。