“…These previous coding systems have been extensively used in research on mother–child interactions and found to be valid and reliable measures of both individual and dyadic behaviours. The new Coding System for Mother–Child Interactions has recently been evaluated in research studies, which report good intercoder reliability and therefore underline the value of this new coding system (Gopin, Healey, Grossman, Campbel, & Halperin, ; Healey et al, ; Rajendran, Kruszewski, & Halperin, ).…”