Decoding the Dyad: Challenges in the Study of Individual Differences in Social Behavior

Social relationships are central to human life and are underpinned by the social interactions that constitute them. Both the behavioral sequences and the quality of these interactions vary significantly from individual to individual and conversation to conversation. This makes it difficult to understand the mechanisms that cause individual differences in social behavior and how such differences affect social outcomes. In order to gain insight into this problem, research must involve the study of real social interactions in parallel with experimental laboratory work. The aim of this review is to present three challenges in the study of face-to-face social behavior and to review results that have begun to address the question of how individual differences predict social behavior, which in turn determines social outcomes. Importantly, this review demonstrates that natural social behavior can be used as an outcome variable in experimental settings, making it possible to examine the mechanisms that drive social behavior and individual differences therein.