Multilevel and cross-level effects of workplace attitudes and group member relations on interpersonal helping behavior

Abstract

Scholars have consistently identified contextual performance or organizational citizenship behavior as a core component of job performance. The current literature on this issue has been dominated by a single-level approach, typically conducted at the individual level of analysis. This study adopts a multilevel approach to simultaneously examine main effects of and cross-level interactions among individual- and group-level predictors of interpersonal helping behavior. Results from a large-scale longitudinal data set show that at the individual level, helping behavior was predicted by perceived organizational support (POS), fairness, and affective commitment. At the group level, helping behavior was predicted by trust among group members. Trust among members also significantly moderated the individual-level relationships between POS and helping behavior and between fairness and helping. These crosslevel moderations indicated that the group- and individual-level predictors were complementary (instead of mutually reinforcing) in predicting interpersonal helping behavior. This finding indicates that various antecedents of interpersonal helping are characterized by distinct dynamics at the individual and group levels of analysis.