Józsa, KrisztiánA. Morgan:, George2018-01-282018-01-282015-122064-2199http://hdl.handle.net/2437/247524motivationearly childhoodpsychometricsmastery motivationquestionnaireteachers’ ratingsreliabilityvalidityAn Improved Measure of Mastery Motivation: Reliability and Validity of the Dimensions of Mastery Questionnaire (dmq 18) for Preschool Childrenfolyóiratcikkopen access journalDebreceni Egyetemi KiadóHungarian Educational Research Journal42015Józsa, Krisztián,A. Morgan:, George2018-01-30Research Papers