GLOSSARY
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...
Continue readingA 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 metaanalysis 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 one another only because of random error. This model takes only within-study variation into account and not between-study variation.