Time-Varying Associations Among Maternal and Paternal Warmth, Sibling Intimacy, and Youth Familism Values Among U.S. Mexican-Origin Youth

OBJECTIVES This study examined developmental changes in the associations among mother, father, and sibling relationship quality and youth familism from ages 12 to 22 years.

METHOD Data were collected from Mexican-origin younger (Mage = 12.8, SD = 0.58) and older siblings (Mage = 15.5, SD = 1.57) in 246 families in the southwestern United States at four timepoints.

RESULTS Maternal and paternal warmth were positively linked to familism between 15 and 19.5 and 12 and 21 years of age, respectively; sibling intimacy was positively associated with youth familism between 19.5 and 21.5 years of age.

CONCLUSIONS Discussion focuses on implications for developmental changes in youth relationships with parents and siblings, and their differential associations with familism at different points in development. (PsycInfo Database Record (c) 2026 APA, all rights reserved).