1. Institute of Education, University of Szeged, 6722 Szeged, Hungary
2. Institute of Education, Hungarian University of Agriculture and Life Sciences, 7400 Kaposvár, Hungary
3. MTA-MATE Early Childhood Research Group, Hungarian University of Agriculture and Life Sciences, 7400 Kaposvár, Hungary
4. Department of Primary and Pre-School Education, J. Selye University, 94501 Komárno, Slovakia