“…Research suggests that increased father involvement in parental caregiving both enhances (Cowan, Cowan, Pruett, & Pruett, 2018;Pruett et al, 2017) and is enhanced by (Murphy et al, 2017) positive co-parenting, with consequent benefits for both the child's development and the relationship between the parents (Casey et al, 2017;Cowan, Cowan, & Mehta, 2009;Cowan et al, 2018;Pruett et al, 2017). Notably, influences between co-parents are strong but complex (e.g., Cabrera, Fagan, Wigh, & Schadler, 2011;Psouni, Agebjörn, & Linder, 2017;Williams, 2018), involving interactions of parents' beliefs, social values, desires and expectations (Feinberg, 2003). For instance, co-parents may be aligned in thought processes regarding caregiving and behave similarly in attachment-related situations (Howes & Spieker, 2008), but it has also been suggested that, rather, the mother's feelings and attitudes have an impact on features of the father's relationship to the child, for example, in terms of frequency and context (Allen & Hawkins, 1999;Murphy et al, 2017).…”