“…The value of correlation between effective teaching and participative, transformational, and managerial leadership styles, for experimental and control group, indicates that increasing of school leadership style values would result in an increase of effective teaching, although there are differences. The result was consistent with previously reported works, which argued that school leadership is in a significant and positive relationship with effective teaching (Lamm et al, 2016;Gregersen et al, 2014;Brown & Corkill, 2004;Saarivirta & Kumpulainen, 2016;Quinlan, 2014;Duttweiler, 1988;Burch & Guarana, 2014;Mustafa & Lines, 2014;Christensen, 2012;Sun, 2011;Fletcher et al, 2012;Price, 2015). In conclusion hypothesis # 1: There is a positive linear correlation between school leadership style and effective teaching, is well supported.…”