Familiarity breeds overconfidence: Group membership and shared experience in the closeness-communication bias

Though both spouses and strangers understand a speaker equally well in a novel communication task, people overestimate their success of communication more with spouses than strangers (Savitsky, Keysar, Epley, Carter, & Swanson, 2011). This phenomenon, termed the closeness-communication bias, is presumed to occur because people anchor their common ground assessments egocentrically and only minimally adjust when they perceive their interlocutors...