“…Researches of self-efficacy apply both the research qualitative strategy (e.g., Cantrell & Callaway, 2008;Cheung, 2008;Milner & Woolfolk Hoy, 2003;Onafowora, 2005;Webb & Ashton, 1987) and the quantitative research strategy (Gavora, 2008(Gavora, , 2010(Gavora, , 2011Gibson & Dembo, 1984;Greger, 2011;Guskey & Passaro 1994;Tschannen-Moran et al 1998). Teacher Efficacy Scale -TES, from Gibson and Dembo and others (1984), became one of frequently used research tools (also used for our research).…”