Montoya Isaac D
College of Pharmacy, University of Houston, 3104 Edloe, Suite 330, Houston TX 77027, USA.
Clin Lab Sci. 2003 Summer;16(3):153-62; quiz 163-5.
To review the reliability and validity literature and develop an understanding of these concepts as applied to managed care studies.
Reliability is a test of how well an instrument measures the same input at varying times and under varying conditions. Validity is a test of how accurately an instrument measures what one believes is being measured.
A review of reliability and validity instructional material was conducted.
Studies of managed care practices and programs abound. However, many of these studies utilize measurement instruments that were developed for other purposes or for a population other than the one being sampled. In other cases, instruments have been developed without any testing of the instrument's performance. The lack of reliability and validity information may limit the value of these studies. This is particularly true when data are collected for one purpose and used for another. The usefulness of certain studies without reliability and validity measures is questionable, especially in cases where the literature contradicts itself
回顾可靠性和有效性文献，并深入理解这些概念在管理式医疗研究中的应用。
可靠性是对一种工具在不同时间和不同条件下测量相同输入的效果的检验。有效性是对一种工具测量人们认为正在被测量的事物的准确程度的检验。
对可靠性和有效性教学材料进行了综述。
关于管理式医疗实践和项目的研究大量存在。然而，这些研究中有许多使用的测量工具是为其他目的或针对与所抽样人群不同的人群开发的。在其他情况下，工具的开发没有对其性能进行任何测试。缺乏可靠性和有效性信息可能会限制这些研究的价值。当数据为一个目的收集却用于另一个目的时尤其如此。某些没有可靠性和有效性测量的研究的有用性值得怀疑，特别是在文献相互矛盾的情况下。
