= Multitrait-Multimethod Model = A '''Multitrait-Multimethod''' ('''MTMM''') model is form of [[Statistics/FactorAnalysis|factor analysis]] making use of multiple measurement instruments. <> ---- == Description == The model begins with a set of [[Statistics/FactorAnalysis|latent constructs]], which are related to both random error and measurements. A set of measurement instruments are employed, with the null hypothesis generally being that there is no '''method effect''' leading to differential estimation. ---- == Reading Notes == * [[ConvergentAndDiscriminantValidationByTheMultitraitMultimethodMatrix|Convergent and discriminant validation by the multitrait-multimethod matrix]], Donald T. Campbell and Donald W. Fiske, 1959 ---- CategoryRicottone