Wb. Swann et Mj. Gill, CONFIDENCE AND ACCURACY IN PERSON PERCEPTION - DO WE KNOW WHAT WE THINK WE KNOW ABOUT OUR RELATIONSHIP PARTNERS, Journal of personality and social psychology, 73(4), 1997, pp. 747-757
A cross-sectional study of dating partners and a longitudinal study of
college roommates revealed that the confidence and accuracy of their
impressions were often dissociated. For example, relationship length a
nd degree of involvement tended to increase the confidence of people's
impressions, but neither variable consistently increased the accuracy
of their impressions of their partners' sexual histories, activity pr
eferences, and sq on. A third study showed that relationship length an
d involvement increased the richness of impressions, and richness fost
ered confidence. The authors conclude that although confidence-accurac
y dissociations are surely problematic in some instances, their appare
nt pervasiveness raises the possibility that confidence may sometimes
contribute to relationship quality even when it is unrelated to accura
cy.