“…They observed that the nature of the relationship shared between partners -positive relationship versus negative one -overdetermined the cognitive management of tasks, by affecting the cognitive processes used by the dyad: children in 'friend' dyads had more exchanges which were more elaborate and more critical than children in 'not-friends' or 'indifferent' dyads; they interacted in a cordial work environment (laughter, exclamations, teasing) characterized by reciprocity of exchanges, and they were more attentive, more respectful, and more demanding of each other. All of these are behaviors that allowed them to take their partner's suggestions into account [Bukowski, Newcomb, & Hartup, 1996;Dumont & Moss, 1996;Kutnick & Kington, 2005;Nelson & Aboud, 1985;Newcomb & Bagwell, 1995;Sorsana & Musiol, 2005].As Psaltis et al [2009] pointed out, this 'second generation of studies' -an expression that we can extend to all research of this period (including non-Swiss research) -granted a more institutionalized role to social variables: the task is not only an activity that a child carries out with two or three partners (if we include the presence of the experimenter). To solve it, children use the set of social parameters related to it.…”