Moursellas, Andreas2013-04-012025-03-262013-04https://pyxida.aueb.gr/handle/123456789/5342https://doi.org/10.26219/heal.aueb.6193Thesis - Athens University of Economics and Business. Postgraduate, Department of Statisticspdf154p.StatisticsStatistical analysisEducational systemsData analysisMultilevel models analysis in hierarchical data structure : an application to educational dataTextPanaretos, J.