Verran J A, Mark B A, Lamb G
College of Nursing, University of Arizona, Tucson 85721.
Res Nurs Health. 1992 Jun;15(3):237-40. doi: 10.1002/nur.4770150310.
The techniques used to examine the psychometric properties of instruments that measure concepts where individual responses are aggregated to form an index describing a group level phenomenon are reviewed. This examination includes assessing the content validity of items to determine how well they measure group level concepts as well as analyzing reliability and validity at the aggregated rather than individual level. Additional techniques to test for within and between group variability are presented. The latter approaches are useful in determining the consistency and adequacy of individual responses at the group level.
本文回顾了用于检验测量概念的工具的心理测量特性的技术，这些概念通过汇总个体反应来形成描述群体水平现象的指标。这种检验包括评估项目的内容效度，以确定它们在多大程度上测量了群体水平的概念，以及在汇总而非个体水平上分析信度和效度。还介绍了用于测试组内和组间变异性的其他技术。后一种方法有助于确定群体水平上个体反应的一致性和充分性。
