Gleason Philip M, Harris Jeffrey, Sheean Patricia M, Boushey Carol J, Bruemmer Barbara
Mathematica Policy Research, Geneva, NY 14456, USA.
J Am Diet Assoc. 2010 Mar;110(3):409-19. doi: 10.1016/j.jada.2009.11.022.
This is the sixth in a series of monographs on research design and analysis. The purpose of this article is to describe and discuss several concepts related to the measurement of nutrition-related characteristics and outcomes, including validity, reliability, and diagnostic tests. The article reviews the methodologic issues related to capturing the various aspects of a given nutrition measure's reliability, including test-retest, inter-item, and interobserver or inter-rater reliability. Similarly, it covers content validity, indicators of absolute vs relative validity, and internal vs external validity. With respect to diagnostic assessment, the article summarizes the concepts of sensitivity and specificity. The hope is that dietetics practitioners will be able to both use high-quality measures of nutrition concepts in their research and recognize these measures in research completed by others.
这是关于研究设计与分析的系列专著中的第六部。本文旨在描述和讨论与营养相关特征及结果测量有关的几个概念，包括效度、信度和诊断测试。本文回顾了与获取给定营养测量信度各个方面相关的方法学问题，包括重测信度、条目间信度以及观察者间或评分者间信度。同样，它涵盖了内容效度、绝对效度与相对效度的指标，以及内部效度与外部效度。关于诊断评估，本文总结了敏感度和特异度的概念。希望饮食从业人员在其研究中既能使用高质量的营养概念测量方法，又能在他人完成的研究中识别这些测量方法。
