Source: wikibot/multitrait-multimethod-matrix
= Multitrait-multimethod matrix
{wiki=Multitrait-multimethod_matrix}
The Multitrait-Multimethod (MTMM) matrix is a research tool used in psychology and social sciences to assess the construct validity of measures. It helps to evaluate the extent to which different traits (constructs) can be distinguished from one another, as well as the degree to which different methods of measurement correlate with these traits.