The Effect of Supervisor Support on Employee Voice Behavior basedon the Self-Determination Theory: The Moderating Effect of ImpressionManagement Motive

Although numerous studies have adopted social exchange theory to investigate the mechanism through which leadership influences employee voice behavior, few studies have placed their focus on the mediation of employees’ basic psychological needs. To address this research gap, this study adopted self-determination theory to explore how supervisor support encourages subordinates to engage in voice behavior. Furthermore, the moderating effect of impression management motive was clarified. This study adopted structural equation modeling and hierarchical regression approach to analyze 268 sets of data of a pair of supervisor and subordinate. The results revealed that basic psychological needs mediated the relationship between supervisor support and self-determined prosocial motivation, which, in turn, was positively related to voice behavior. In addition, subordinates’ impression management motive weakens the positive relationship between self-determined prosocial motivation and voice behavior.