The Need for Inclusion: The relationships between Relational and Collective inclusion needs and psychological well‐and ill‐being

Abstract The Need to Belong concept encompasses the need for inclusion and the discomfort with exclusion. The Need to Belong Scale of Leary, Kelly, Cottrell, and Schreindorfer (2013, p. 610), however, primarily probes into the discomfort aspect, and it does not distinguish between relational and collective self‐levels. Two studies (total N = 429) provided evidence of the reliability, distinctiveness, and validity of the newly developed Need for Inclusion scale. The results revealed that Relational Need for Inclusion positively contributes to psychological well‐being and negatively to ill‐being. Collective Need for Inclusion was distinctively related to collective and group‐level outcomes of self, such as social trust and collective self‐esteem. Need to Belong yielded a reversed pattern of results for the studied outcomes. It is concluded that inclusion needs and discomfort with exclusion are positively related but clearly distinct, and that future studies should investigate their joint effects in a single research design.