First Author:   Rica Gonen The Open University ricagonen@gmail.com   Department of Management and Economics, The Open University of Israel, 1 University Road, Raanana, 43537, Israel       Second Author: Anat Lerner The Open University anat@cs.openu.ac.il   The Open University of Israel, The Open University of Israel, 1 University Road, Raanana, 43537, Israel