Fixed-effect model
Revision as of 17:27, 8 November 2023 by Editor iHTS (talk | contribs) (Created page with "In a meta-analysis, a statistical model that takes only within-study variability into account in assessment of the degree of uncertainty (confidence interval) of the combined effect from the studies. '''Note:''' The fixed-effect model assumes that the units analysed are the units of interest and, consequently, that they make up the population of units. In such a model, variation between the estimates of effect from each study (heterogeneity) does not affect the confiden...")
In a meta-analysis, a statistical model that takes only within-study variability into account in assessment of the degree of uncertainty (confidence interval) of the combined effect from the studies.
Note: The fixed-effect model assumes that the units analysed are the units of interest and, consequently, that they make up the population of units. In such a model, variation between the estimates of effect from each study (heterogeneity) does not affect the confidence interval.
(Related concepts: random effects model, Peto method)
Alternative spelling: fixed effect model