Methodology for Dealing With Duplicate Study Effects in a Meta-Analysis
提出检测和处理元分析中重复研究效应的方法,通过分析五个已发表的元分析和一个未发表的销售人员离职元分析,展示了重复效应对聚合结果的影响,并推荐使用筛选启发式来识别和解决重复问题。
Study effects developed from the same data set and duplicated in more than one publication likely will bias the aggregated effects in a meta-analysis. This threat to the validity of meta-analyses in organizational research is significant. Methods of detecting overt and covert duplication of publication are presented through an analysis of five published meta-analyses. An unpublished meta-analysis of salesperson turnover is used to present the implications of nonindependence. Options for the correction of duplication are discussed. It is recommended that study effects gathered during the literature search use the proposed screening heuristic to detect and address duplicate study effects.