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"The Handbook of Secondary Gifted Education." Gifted and Talented International, 21(2), pp. 87–88 Additional informationNotes on contributorsHeinz NeberHeinz Neber is a Professor of Educational Psychology at the University of Ulm in Germany. He has been published widely in this field and his research interests include discovery learning, instructional methods and the evaluation of gifted programs.
Heinz Neber (Fri,) studied this question.