“…Group norms provide information about how to maintain acceptance in the group and, by extension, how to avoid becoming a "black sheep" (Marques, Yzerbyt, & Leyens 1988). People are especially likely to conform to groups they find attractive (Jackson & Saltzstein, 1958) and to groups that have a high level of cohesion or interdependence (Deutsch & Gerard, 1955). Notably, people are generally unaware of the powerful impact of normative information on their own attitudes and behavior (Cialdini & Goldstein, 2004;Cohen, 2003;Latanè & Darley, 1970;Nolan, Schultz, Cialdini, Goldstein, & Griskevicius, 2008).…”