ABSTRACT
Mate retention behaviors are designed to reduce the likelihood of partner infidelity and relationship withdrawal. We investigated the psychometric properties of the Persian translation of The Coalitional Mate Retention Inventory (CMRI) in Iran and explored the sex differences in the performance frequencies of these behaviors. Participants in a committed heterosexual romantic relationship (n = 508, 270 female and 238 male) were drawn from a community sample. Participants reported demographic information (including age, duration of relationship), the Persian translation of CMRI, and the Persian translation of the Mate Retention Inventory-Short Form. The results of the confirmatory factor analyses demonstrated a good fit of the CMRI seven-factor model and achieved good reliability for CMRI and its subscales. We further documented sex differences in the frequency with which coalitional mate retention behaviors were performed. The results revealed that CMRI is a valuable instrument for assessing mate retention across diverse cultures.