“…For these three research questions, and following the dualhormone hypothesis, we hypothesized that higher CORT and T would predict lower paternal caregiving quality in toddlerhood, and that the negative association between T and caregiving quality would be stronger for fathers with lower CORT. Given that studies find both positive and negative associations between CORT, T and maternal caregiving behavior (Endendijk et al, 2016;Clowtis et al, 2016;Finegood et al, 2016;Mills-Koonce et al, 2009;Thompson and Trevathan, 2008), while other studies do not find any associations (Bos et al, 2018;Gordon et al, 2017;Rodriguez et al, 2020), we did not set up specific hypotheses on the direction of the associations between T, CORT and maternal caregiving quality in toddlerhood.…”