“…However, despite the strength of within-couple correlations observed for demographic variables (Blossfeld & Timm, 2003), this resemblance appears not to account for similarity across other characteristics. For example, AM has been reported to occur within a range of populations that are relatively demographically homogenous (e.g., Burgess & Wallin, 1943;Godoy et al, 2008;Kardum et al, 2017;Luo, 2009;Luo & Klohnen, 2005;Richards et al, 2020;Tognetti et al, 2014;Wu et al, 2020). AM could arise through convergence, i.e., couples may grow alike over time due to their interactive experiences and shared environment.…”