Examining the Interaction of Extroversion and Network Structure in the Formation of Effective Informal Support Networks

This study on informal support networks bridges the traditionally disparate disciplines of personality theory and social network theory, and examines the impact of extroversion on the structure of support networks, as well as the relative contribution of network structure versus extroversion to a critical element of network effectiveness: trust. Two uestionnaires measuring extroversion and social support network characteristics were administered to 113 university business students. Although no impact of extroversion was found on certain dimensions of network structure (e.g., size, diversity, behavioral aspects of strength of ties), introverts and extroverts differed in terms of affective aspects of strength of ties and embeddedness. Furthermore, although we failed to find a significant interaction effect of extroversion and embeddedness on trust, both extroversion and strength of ties predicted trust. In addition, extroverts’ networks were characterized by higher levels of intimacy and trust, which may