Validation of the extended Influence Behavior Questionnaire

We conducted four studies to evaluate the extended version of the Influence Behavior Questionnaire (IBQ), which measures proactive tactics used to influence people in organizations. The results provide support for the reliability and validity of the 11 tactic scales in the newest version of the IBQ. The questionnaire has widespread potential applications for both research and practice, and it is the most comprehensive and best validated measure of proactive influence tactics. However, the IBQ is not equally useful for all purposes, and we describe some limitations and potential problems that could reduce the validity of the scales.