Feelings of interpersonal undistinctiveness: An unpleasant affective state. Journal of Experimental Research in Personality, Vol 6(2-3), 178-185. Fromkin, Howard L. (1972).

This article presents a study on 38 male and 38 female undergraduates who received bogus test results which described them as low, moderate, high, or extreme in uniqueness and then completed a Mood Adjective Checklist. The author correctly predicted that affect would become more pleasant as feelings of distinctiveness increased. The 2nd hypothesis was that this relationship would be curvilinear with a high uniqueness group approximating the point of inflection. This hypothesis was not confirmed due to a weak spread in the degree of self-perceived uniqueness between the high and extreme uniqueness groups.