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Multitrait-multimethod matrix

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The Multitrait-Multimethod (MTMM) matrix is an approach to examining [Construct Validity] developed by Campbell and Fiske (1959)[1].


Multitrait

Multiple traits are used in this approach to establish (a) similar or (b) dissimilar traits, as to establish convergent and discriminant validity amongst traits.


Multimethod

Similarly, multiple methods are used in this approach to examine the differential effects (or lack thereof) caused by method specific variance.

  1. ^ Campbell, D.T., & Fiske, D.W. (1959) Convergent and discriminant validation by the multitrait-multimethod matrix. Psychological Bulletin, 56, 81-105 Retrieved from "http://en.wikipedia.org/wiki/Donald_W._Fiske"
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