A basic introduction to fixedeffect and ... - Meta-analysis
Keywords: meta-analysis; fixed-effect; random-effects; statistical models; research synthesis; systematic reviews Introduction There are two popular statistical models for meta-analysis, the fixed-effect model and the random-effects model.
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Converting Among Effect Sizes - Meta-analysis
www.meta-analysis.comin one meta-analysis. Unlike the earlier case, we are now dealing with different indices, and we need to convert them to a common index before we can proceed. The question of whether or not it is appropriate to combine effect sizes from studies that used different metrics must be considered on a case by case basis. The
Publication Bias - Meta-analysis
www.meta-analysis.comPublication Bias Introduction The problem of missing studies Methods for addressing bias Illustrative example ... (for example personal communication, in press documents and data on file), and slightly over 1% were to books or book ... cost bias (selective inclusion of studies that are available free or at low cost);familiaritybias ...
Fixed-Effect Versus Random-Effects Models
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