Rj. Robinson et al., ACTUAL VERSUS ASSUMED DIFFERENCES IN CONSTRUAL - NAIVE REALISM IN INTERGROUP PERCEPTION AND CONFLICT, Journal of personality and social psychology, 68(3), 1995, pp. 404-417
We compared partisan group members' construals and beliefs regarding c
ontentious issues, contrasting actual differences in construal with th
eir assumptions about those differences. Study I dealt with the aborti
on debate and Study 2 with the racially charged Howard Beach incident.
Although many significant examples of construal differences were foun
d, overestimation of such differences was far more common than underes
timation. Misperception about the extremity and consistency of conserv
atives was particularly pronounced. Partisans in both studies felt tha
t their own views were less driven by political ideology than those of
the other side or their own side. In Study 2, nonpartisans similarly
overestimated liberal-conservative differences (again, especially for
conservatives). This finding suggests the phenomenon is best character
ized as a bias not in partisan perceptions but in the way partisans, a
nd partisanship, are perceived.