“…We reasoned that, by creating a situation in which a valued object was actually broken, rather than using a hypothetical scenario, we might be able to detect signs of collective responsibility even in these younger children. Many of the pre-requisites for collective responsibility seem to be in place by five years of age: we know from previous research that children of this age categorise themselves as belonging to some groups and not others (Aboud, 2001) and that they are sensitive to even artificially created groups (e.g., Dunham et al, 2011;Nesdale & Flesser, 2001;Engelmann, Over, Herrmann, & Tomasello, 2013). Moreover, by this age, children accept responsibility for their own negative actions in interpersonal contexts and recognize and value the acceptance of responsibility in others (Kochanska et al, 2002;Vaish, Carpenter, & Tomasello, 2011, in press).…”