“…Pearson correlations were also conducted to examine the association between parent and child EDA variability and the proportions of parent communication behaviours. Consistent with previous work in parent–child interactions, proportions rather than total numbers were used because parents communicated at different frequencies, and we were interested in the quality rather than quantity of parent behaviours (Bornstein et al, ; Bryce & Jahromi, ; Peterson, Luze, Eshbaugh, Jeon, & Kantz, ; Zampini, Fasolo, & D'Odorico, ). Movement data were considered but not included in the final analyses; including movement in the models did not change the results.…”