Samuel Greiff Author

Andreas Demetriou is Professor Emeritus of Psychology of the University of Cyprus and the University of Nicosia and currently the President of the Cyprus Academy of Science, Letters, and Arts.

Samuel Greiff is head of research group, principal investigator, and Full Professor of Educational Assessment and Psychology at University of Luxembourg.

George Ch. Spanoudis is professor of Psychology at the Department of Psychology of the University of Cyprus.

NikolaosMakris is professor of Cognitive Psychology at the Department of Primary Education, Democritus University of Thrace.

Smaragda Kazi is professor of Development Psychology at the Department of Panteion University of Social and Political Sciences, Athens, Greece.

Rita Panaoura is professor in Mathematics Education and Dean of the School of Education and Social Sciences at Frederick University.

Mari-Pauliina Vainikainen is professor of Learning and Teaching at the Faculty of Education and Culture at Tampere University in Finland.