Kavale K A
University of Iowa, USA.
Eval Health Prof. 1995 Dec;18(4):349-69. doi: 10.1177/016327879501800402.
It has been 20 years since Gene Glass reinvigorated research integration through the formalization of meta-analysis. This article explores the nature of meta-analysis by placing it within the context of research synthesis. The methods of meta-analysis are described briefly and compared and contrasted with other forms of research integration. In addition, the findings from several meta-analyses are provided to show the advantages of quantitative review methods. Finally, criticisms of meta-analyses are analyzed, as are several unanswered questions about the direction of meta-analysis.
自吉恩·格拉斯通过将元分析形式化重振研究整合以来，已经过去了20年。本文通过将元分析置于研究综合的背景中来探讨其本质。简要描述了元分析的方法，并与其他形式的研究整合进行了比较和对比。此外，还提供了几项元分析的结果，以展示定量综述方法的优势。最后，分析了对元分析的批评以及关于元分析方向的几个未解决的问题。
