What is MTMM???

QuantFish instructor Dr. Christian Geiser explains Campbell & Fiske's (1959) multitrait-multimethod (MTMM) framework for examining convergent and discriminant validity. Also check out his other videos on MTMM analysis:
Campbell & Fiske's (1959) validity criteria: • MTMM: Campbell & Fiske...
CFA-MTMM models explained: • What are CFA-MTMM Models?
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Dr. Christian Geiser is a quantitative psychologist, author of two books on Mplus, and a leader in the development of latent variable techniques for complex data. With his accessible books and sought-after workshops, he has helped thousands of researchers and students around the world to achieve their analytic goals. Sign up for his newsletter at christiangeiser.com.
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Reference
Campbell, D. T., & Fiske, D. W. (1959). Convergent and discriminant validation by the multitrait-multimethod matrix. Psychological Bulletin, 56, 81-105.

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What is the difference between this video and the following one? ruclips.net/video/gdmG424fFdM/видео.htmlsi=lNJ0unTX-H50OT5h

[@QuantFish]

The current video explains the basics ideas of the MTMM paradigm. In the other video I explain Campbell and Fiske's (1959) specific criteria for assessing convergent and discriminant validity based on an MTMM matrix.
Best, Christian Geiser