ABSTRACT
In this chapter, a synopsis is presented of national and international studies as well as of two meta-analyses that were conducted to test the validity of the dynamic model of educational effectiveness. These studies have provided empirical support for the main assumptions of the dynamic model with regard to the factors included in the model as well as the use of the five dimensions to measure the functioning of these factors. Empirical studies have also revealed relationships among factors operating at the classroom level, which help us define stages of effective teaching. In the second part of this chapter, we present the main results of a synthesis of effectiveness studies conducted during the fourth phase of Educational Effectiveness Research and more specifically those carried out from 2005 till 2017. Implications of the findings of this synthesis for research on educational effectiveness are also discussed. At the end of the chapter, it is stressed that the results of studies exclusively designed to test the validity of the model as well as the results of this synthesis of effectiveness studies will help to further develop the dynamic model of educational effectiveness.
