This study attempted to extend research on cognitive structure and aff
ective extremity to help understand the dynamics of interpersonal rela
tionships. Individual members of dating couple relationships (n = 51)
described their partners in a card-sorting task used to assess cogniti
ve complexity and completed measures of affect in their relationships.
Contrary to earlier studies that had found a number of cognitive dime
nsions to play a large role in judgemental extremity, the redundancy o
f the dimensions (i.e. whether unique or the same attributes were used
to describe different facets of the partner) was most important. Grea
ter redundancy in a perceiver's cognitive representation of the partne
r was associated with greater perceived likelihood of remaining with t
he partner, and greater positive affect and less negative affect being
felt toward the partner.