It's Not What You Say, It's The Way That You Say It: The Mediating Effect of Upward Influencing Communications on the Relationship Between Leader-Member Exchange and Performance Ratings

The quality of relationships between supervisors and their subordinates has been found to be predictive of subordinate performance. A number of explanatory mechanisms have been proposed, and the frequency and nature of dyadic communication have been posited as contributory. To further explore this potential mechanism, the authors tested the hypothesis that upward influencing communications mediate the relationship between relationship quality, as measured by leader-member exchange (LMX), and supervisor ratings of subordinate performance. In a study involving 107 supervisors, LMX was positively associated with reported frequencies of upward influences delivered as rational argument and negatively associated with ingratiatory and assertive communications. LMX was also positively associated with performance ratings, but this relationship was fully mediated by the frequency of upward influencing tactics, with rational argument being positively predictive of performance ratings and assertiveness being negatively associated with ratings of performance.