This field study of 441 full-time employees in 95 work groups examined voice behavior (constructive challenge to the status quo with the intent of improving the situation rather than merely criticizing) as a function of person-centered (satisfaction with the work. group, global self-esteem) and situational factors (group size, self-managed vs. traditional style of management). Using a measure of voice with demonstrated construct validity, the study showed that these person and situation factors explained 10% of the variance in peer-rated voice assessed 6 months later. Significant Person x Situation interactions suggested that individuals with low global self-esteem or high satisfaction with their group were more responsive to the situational factors than individuals with high global self-esteem or low satisfaction. The authors discuss the importance of including personcentered characteristics, situational factors, and their interactions as predictors of voice.For over 50 years, scholars have recognized the importance of behavior that goes beyond normal role expectations or job requirements and that benefits or is intended to benefit the organization (Barnard, 1938;George & Brief, 1992;Katz & Kahn, 1978). Over the last decade research interest in these discretionary or extra-role behaviors has increased; however, the primary focus has been on affiliative behaviors (e.g., helping) associated with "organizational citizenship" (e.g., Organ, 1988) and "contextual performance" (e.g., Motowidlo & Van Scotter, 1994). Although this research has led to a great deal of insight, other types of extra-role behavior have received far less attention (Graham, 1991;Van Dyne, Cummings, & McLean Parks, 1995). In this study we focused on voice behavior--speaking out and challenging the status quo with the intent of improving the situation. Although scholars have acknowledged the contributions that voice and change-oriented behavior can make to organizational effectiveness (Katz & Kahn, 1978;Nemeth & Staw, 1989;Schein, 1968), voice is particularly important today given the emphasis on flexibility, innovation, and continuous improvement (Howard, 1995).Nowhere is the need for voice more important than in work groups. Work groups, or sets of interdependent Jeffrey A. LePine, Department of Management, University of Florida; Linn Van Dyne, Department of Management, Michigan State University.We thank Jason A. Colquitt for his comments on this article. Correspondence concerning this article should be addressed to Jeffrey A. LePine, Department of Management, University of Florida, 201 Business Building, P.O. Box 117165, Gainesville, Florida 32611-7165. Electronic mail may be sent to lepineja@ dale.cba.ufl.edu.
853individuals who share responsibility for outcomes (Sundstrom, DeMeuse, & Futrell, 1990), are increasingly being used as a means of dealing with competitive environments that demand flexibility (Ilgen, 1994). Instead of structuring work around individual-level jobs, work is assigned to groups that are expected to devise effective mea...