“…Among heterosexual couples, research has underscored distinct coparenting roles of mothers versus fathers, such as greater associations between contextual influences (e.g., work hours and satisfaction) and coparenting quality among mothers versus fathers, or gender differences in associations between parenting roles and children’s behavioral adjustment (e.g., unique links between maternal sensitivity and daughters’ adjustment as well as between paternal sensitivity and sons’ adjustment; Cowan et al, 1993; Riina & Feinberg, 2018; Zvara, Sheppard, & Cox, 2018). Moreover, associations between coparenting and child adjustment have been demonstrated among families in which at least one parent is not biologically related to the child (i.e., stepparent families; Favez, Widmer, Frascarolo, & Doan, 2019). Thus, new information about two critical areas relevant to coparenting and child development could be yielded from longitudinal studies including LG and adoptive parent family samples, respectively: (a) the relative role of parental gender and sexual orientation over time in families with parents diverse in sexual orientation (i.e., lesbian, gay, and heterosexual parents), and (b) whether associations between coparenting and child adjustment uncovered previously are also apparent over time among adoptive families (i.e., in the absence of any parent–child biological ties).…”