STATISTICAL ISSUES IN ECOLOGICAL META-ANALYSES

作者：Jessica Gurevitch, Larry V. Hedges · 发表于：Ecology · 年份：1999 · DOI：10.1890/0012-9658(1999)080[1142:siiema]2.0.co;2 · 被引用次数：1047 · 研究领域：Ecology and Vegetation Dynamics Studies、Species Distribution and Climate Change、Plant responses to elevated CO2

Meta-analysis is the use of statistical methods to summarize research findings across studies. Special statistical methods are usually needed for meta-analysis, both because effect-size indexes are typically highly heteroscedastic and because it is desirable to be able to distinguish between-study variance from within-study sampling-error variance. We outline a number of considerations related to choosing methods for the meta-analysis of ecological data, including the choice of parametric vs. resampling methods, reasons for conducting weighted analyses where possible, and comparisons fixed vs. mixed models in categorical and regression-type analyses.