Dries Berings, Filip De Fruyt, René Bouwenc
EHSAL, Stormstraat 2, 1000 Brussels, Belgium
Department of Psychology, Ghent University, H. Dunantlaan 2, B-9000 Gent, Belgium University of Leuven, Leuven, Belgium
Received 1 July 2002; received in revised form 9 January 2003; accepted 4 February 2003