Université Paris-Descartes, Sorbonne Paris Cité, Université de Lorraine, EA 4360 APEMAC Nancy, France.
J Clin Epidemiol. 2013 Jul;66(7):710-8. doi: 10.1016/j.jclinepi.2012.12.015. Epub 2013 Apr 6.
To review current practice and update guidelines for the methodology of shortening composite measurement scales (CMSs).
A literature review gathered data on 91 shortening processes from 1995 to 2009. The validity of the initial CMS, the shortening methods, and the validity of the derived short-form scales were examined. The results were compared with those from a previous literature review (articles from 1985 to 1995) to develop updated guidelines for CMS shortening.
The literature review revealed a persisting lack of use of rigorous methodology for CMS shortening. Of the 91 cases of CMS shortening, 36 combined a content approach and a statistical approach; 45 used only a statistical approach and 10 (11%) only a content approach. The updated guidelines deal with the validity and conceptual model of the initial CMS, the preservation of content and psychometric properties during shortening, the selection of items, and the validation of the short form.
Item reduction based on a rigorous methodology is necessary if the short-form instrument aims to maintain the validity and other measurement properties of the parent instrument, which in turn supports application in research and clinical practice.
回顾目前的实践并更新简化综合测量量表（CMS）方法学的指南。
文献综述从 1995 年到 2009 年收集了 91 种简化过程的数据。检验了初始 CMS 的有效性、简化方法以及衍生的短式量表的有效性。将结果与之前文献综述（1985 年至 1995 年的文章）进行比较，以制定 CMS 简化的更新指南。
文献综述显示 CMS 简化中仍然缺乏严格的方法学应用。在 91 种 CMS 简化案例中，36 种结合了内容方法和统计方法；45 种仅使用统计方法，10 种（11％）仅使用内容方法。更新的指南涉及初始 CMS 的有效性和概念模型、简化过程中内容和心理计量特性的保留、项目选择以及短式的验证。
如果短式工具旨在保持母体工具的有效性和其他测量特性，则基于严格方法的项目减少是必要的，这反过来又支持在研究和临床实践中的应用。
