Developing the CWB's model based on theory of planned behavior; (A Personality Traits Approach)

“Counterproductive work behaviors” (or deviance behaviors) is a kind of voluntary behaviors that violates organizational norms that reduce the efficiency of organizations and individuals. These behaviors include abusive behavior, deviant behavior, production, sabotage, theft and behaviors of withdraw or ignoring. Counterproductive work behaviors, has economical, social and psychological costs for organizations. So the main objective of this study is to investigate the causes of this behavior based on the theory of planned behavior. To achieve the research purpose, we handed out 330 standard questionnaires between the employees in different positions. Reliability and validity of the questionnaire were measured using convergent validity, discriminant validity, composite reliability and Cronbach's Alpha. The results of the survey indicate that correlation between constructs (behavioral attitude, mental norm, perceived control, behavioral intention and actual behavior) in theory of planned behavior in MELAT bank completely confirmed (it means all casual relationships confirmed). In another words, people do these behaviors intentionally or with prior purpose. Also the moderator role of fear of punishment was approved in the relationship between intention and actual behavior. It means that if punishment policies and procedures exist in bank and offenders punish severely, people will not show counterproductive work behaviors.