fixed effect model

Home » Modern Medicine » Evidence-Based Medicine » fixed effect model
fixed effect model2016-12-12T23:04:19+00:00

fixed effect model 


A statistical model that stipulates that the units being analysed–e.g. people in a trial, or studies in a meta-analysis, are the ones of interest, and thus constitute the entire set of units.

Only within-study variation is taken to influence the uncertainty of results (as reflected in the confidence interval) of a meta-analysis using a fixed-effect model. Variation between the estimates of effect from each study (heterogeneity) does not affect the confidence interval in a fixed-effect model.  

Reference Cochrane definition, in

Leave A Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.