Term: Mixed Effects Model

Glossary Definition

Last Updated: 2006-04-17

Definition:

A regression model in which the mean response is modelled as a combination of population characteristics that are assumed to be shared by all individuals and subject-specific effects that are unique to a particular individual. The former are referred to as fixed effects, while the latter are referred to as random effects.

References 

• Roos LL, Magoon J, Gupta S, Chateau D, Veugelers PJ. Socioeconomic determinants of mortality in two Canadian provinces: multilevel modelling and neighborhood context. Soc Sci Med 2004;59(7):1435-1447. [Abstract] (View)