Differentiating selves facilitates group outcomes.

The target article proposed that differentiation of selves is a crucial moderator of group outcomes, such that differentiation of selves contributes to beneficial outcomes of groups while limiting undesirable outcomes. In this response, we aim to complement the target article by refining and expanding several aspects of the theory. We address our conceptualization of optimal group functioning, clarify the term differentiation of selves, comment on the two-step nature of our model, offer theoretical connections and extensions, and discuss applications and opportunities for future research.