Széll, Krisztián2017-03-142017-03-142013-062064-2199http://hdl.handle.net/2437/235859student achievementeducational qualityteaching qualityteacher effectivenessschool effectivenesssocio-economic statusFactors Determining Student Achievementfolyóiratcikkopen access journalDebreceni Egyetemi KiadóHungarian Educational Research Journal32013Széll Krisztián2018-01-30Research Papers