Bogardus social distance scale

The Bogardus social distance scale is a psychological testing scale created by Emory S. Bogardus to empirically measure people's willingness to participate in social contacts of varying degrees of closeness with members of diverse social groups, such as racial and ethnic groups. The scale asks people the extent to which they would be accepting of each group (a score of 1.00 for a group is taken to indicate no social distance): As close relatives by marriage (i.e., as the legal spouse of a close relative) (score 1.00) As my close personal friends (2.00) As neighbors on the same street (3.00) As co-workers in the same occupation (4.00) As citizens in my country (5.00) As non-citizen visitors in my country (6.00) Would exclude from entry into my country (7.00) The Bogardus social distance scale is a cumulative scale (a Guttman scale), because agreement with any item implies agreement with all preceding items.

Source: Wikipedia — Bogardus social distance scale (CC BY-SA 4.0)