“…A similar emphasis on coding the function of interpersonal behaviors can be found in emotion research with adolescents (e.g., Hollenstein, Allen, & Sheeber, 2016; Main, Paxton, & Dale, 2016) and adults (e.g., Carstensen, Gottman, & Levenson, 1995; Gottman & Krokoff, 1989). Although functionally-oriented coding systems could be considered to involve an undesirable degree of subjective judgment, a number of researchers have convincingly argued that it is both feasible and often preferable to utilize such a system because of its greater validity (e.g., for reviews, see Gottman, McCoy, Coan, & Collier, 1996; Sroufe & Waters, 1977; Walle & Campos, 2012). Additionally, whereas specific behaviors may be bound by affordances or constraints inherent in the context, functional coding is more likely to be applicable across contexts.…”