Authors: Beishuizen, J.; Le Grand, J.; van der Schalk, J.
Source: Learning and Instruction, Volume 9, Number 1, February 1998, pp. 37-56(20)
Document Type: Research Article
Affiliations: Department of Developmental and Educational Psychology, Leiden University, P.O. Box 9555, 2300 RB, Leiden, The Netherlands
Publication date: February 1, 1998