Glossary · Validity and evidence
Multitrait–multimethod design (MTMM)
4ValidationA design that measures several constructs through several methods, so that correlations that follow the trait can be separated from correlations that follow the method. A factor that appears under only one format is suspect.
Also called: MTMM, multitrait-multimethod matrix
Defined in
Handbook · ValidationSources of validity evidenceFace, content, response-process, internal-structure, convergent, discriminant and criterion evidence, plus the multitrait–multimethod design.Related terms
- Convergent evidence
- Agreement among independent methods intended to measure the same construct, at the strength theory predicts.
- Discriminant evidence
- Evidence that scores do not mainly track nuisance variables or distinct constructs, such as length or rhetorical confidence.