Fixed-Effects Models

Fixed-Effects Models

 

A model to generate a summary estimate of the magnitude of effect in a meta-analysis that restricts inferences to the set of studies included in the meta-analysis, and assumes that a single true value underlies all of the primary study results. The assumption is that if all studies were infinitely large, they would yield identical estimates of effect; thus, observed estimates of effect differ from each other only because of random error. This model only takes within-study variation into account and not between-study variation.

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