Learning Objectives

11.1 Define relationship, close relationship, need for affiliation, need to belong, reinforce­ment-affect model, social exchange theory, equity theory, and communal and exchange relationships.

11.2 Summarize the study on I-sharing and liking, the influence of proximity, familiarity, and similarity on liking, and the matching hypothesis.

11.3 List the physical features that heterosexual men and women tend to find attractive in the other gender as well as the perceived and actual benefits of physical attractiveness; explain the evolutionary and the social role theory perspectives on mate selection.

11.4 Define passionate and companionate love, outline the triangular theory, two-factor theory (and the bridge study); summarize the evolutionary perspective on the function of love, the three motivation systems associated with love, and the research on the origins of homosexuality.

11.5 Discuss the obstacles to relationship research and how event sampling can help overcome some of them.

11.6 Identify the four attachment styles and how they affect adult romantic relation­ships; describe the influences of positive illusions and self-disclosure on relation­ship satisfaction.