Pollack C D
Yale University School of Nursing, New Haven, CT 06536, USA.
Outcomes Manag Nurs Pract. 1999 Oct-Dec;3(4):147-52.
The use of secondary data sets has begun to receive increased attention in nursing research. Shrinking grant dollars, continuing pressure to produce replicable generalizable research results, and a growing interest in outcomes management and research have all contributed to an interest in examining how data may be used for multiple purposes. Secondary data analysis may offer the practitioner and researcher ready access to large data sets with multiple variables; yet, there are potentially significant methodological concerns that should be well understood and managed in the initial query design. Considered here will be some of the issues regarding the reliability and validity of large data sets used for secondary analysis, including a discussion on maintaining the integrity of those files as they are moved, merged, and transformed. Finally, methods for managing missing data are reviewed.
二手数据集的使用在护理研究中已开始受到越来越多的关注。经费缩减、产出可重复且具有普遍适用性研究结果的持续压力，以及对结果管理与研究兴趣的不断增加，所有这些都促使人们关注如何将数据用于多种目的。二次数据分析可能为从业者和研究人员提供便捷途径，使其能够获取包含多个变量的大型数据集；然而，在初始查询设计中，存在一些潜在的重大方法学问题，需要充分理解并加以处理。本文将探讨用于二次分析的大型数据集的可靠性和有效性方面的一些问题，包括在文件移动、合并和转换过程中如何保持其完整性的讨论。最后，将回顾处理缺失数据的方法。
