“…It is generally accepted that this concept consists of four dimensions, i.e. Meaning, Competence, Self-Determination, and Impact (Spreitzer, 1995;Thomas and Velthouse, 1990), and is linked with a number of different work behaviors like employees' performance and attitudes (Fulford & Enz, 1995 ;Hall, 2008;Koberg, 1999;Spreitzer, 1995Spreitzer, , 1996Suzik, 1998), job satisfaction (Gazzoli et al, 2010;Avey et al, 2008;Bordin et al, 2007;Ugboro & Obeng, 2000) and organizational commitment (Dehkordi et al, 2011;Joo et al, 2010;Chen & Chen, 2008;Bhatnagar, 2005). managers (Gomez & Rosen, 2001;Laschinger & Finegan, 2005;Moye & Henkin, 2005).…”