DDDM in this particular case helped to improve student results. Effective schools showing outstanding gains in academic measures report that the wide and wise use of data has a positive effect on student achievement and progress. DDDM is suggested to be a main tool to move educational organizations towards school improvement and educator effectiveness. Data can be used to measure growth over time, program evaluation along with identifying root causes of problems connected to education. Involving school teachers in data inquiry causes more collaborative work from staff. Data provides increasing communication and knowledge which has a positive effect on altering educator attitudes towards groups inside schools which are underperforming