Organizational commitment emerged in 1970s and 1980s as a key factor of the relationship between
individual and the organizations (Mowday et. al., 1982). Today organizational commitment is even
more important since it is considered as the driving force behind organizational performance and a
desirable quality which can reduce employee turnovers (Meyer et all, 1989). The concept of
commitment has been defined in different ways in the literature by various researchers (Kumar &
Krishnaveni, 2008). Organizational commitment as defined by Porter et al. (1974) has three major
components; a strong belief in and acceptance of the organization's goals, a willingness to exert
considerable effort on behalf of the organization, and a definite desire to maintain organizational
membership (Angle & Perry, 1981).