 By 1986 it was regarded as a central overarching concept for community psychology (Sarason, 1986; Chavis & Pretty, 1999).In addition, the theoretical concept entered the other applied academic disciplines as part of "communities for all" initiatives in the US.Among theories of sense of community proposed by psychologists, McMillan & Chavis's (1986) is by far the most influential, and is the starting point for most of the recent research in the field.It is discussed in detail below.