Within the work package 2 and 3, a week-long working meeting was organized at the Katholieke Universiteit Leuven in Belgium from 8-14th May 2015. Meeting of the Steering Committee of the IEEPS project was held on the first day of the visit. Research team members from Serbia and Slovenia had the opportunity to learn about multilevel analysis used in TIMSS, PISA and other studies carried out at the Katholieke Universiteit Leuven. Furthermore, participants gained insight into the advantages of ...