After months of planning, selecting proper samples, obtaining permissions and communicating with school coordinators, the questionnaire distribution has commenced in April 2015. Packages were sent to 125 schools in Serbia. During April, May and June 2015, data from over 5,500 students, their parents and 2,500 teachers were collected and entered into databases. Data analyses will serve as the basis for creation of the School performance feedback, Effective factors Handbook and in-service trai...