Associations between coparenting and marital behavior from infancy to the preschool years.

This study examined the associations between coparenting and marital behavior from infancy to the preschool years. Coparenting and marital behavior were assessed in 46 families during observations of family play and marital discussions at 6 months and 3 years. Both coparenting and marital behavior showed moderate stability from 6 months to 3 years. In addition, coparenting and marital behavior were more consistently associated at 3 years than at 6 months. When the predictive capabilities of early coparenting and marital behavior for later coparenting and marital behavior were considered, early coparenting predicted later marital behavior but not vice versa. This study highlights the importance of early coparenting behavior, especially undermining coparenting behavior, for understanding both subsequent coparenting behavior and subsequent marital behavior.