Three studies were conducted to develop and validate the new multimodal couple commitment questionnaire (MCCQ). Study 1 led to the creation and evaluation of the factor structure of the first version in 45 items of the questionnaire, with a sample of 139 adults. In Study 2, exploratory factor analyses among 317 adults from the community helped to reduce the number of items in the questionnaire. In Study 3, confirmatory factor analysis was used within a broad sample of 797 adults to demonstrate the psychometric qualities of the Questionnaire in 27 items. The results showed that MCCQ is a promising measure of optimal commitment, of over-commitment and of under-commitment that researchers can use with confidence. Further validation studies are needed to enable its use in a clinical context. (PsycINFO Database Record (c) 2017 APA, all rights reserved)
