[1] Univ Luxembourg, Inst Cognit Sci & Assessment, Comp Based Assessment, Luxembourg, Luxembourg
[2] Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, NIH, Bethesda, MD USA
[3] Tampere Univ, Fac Educ & Culture, Tampere, Finland
[4] Univ Helsinki, Ctr Educ Assessment, Helsinki, Finland
[5] Inst Fiscal Studies, London, England
[6] Univ Munich, Dept Educ & Educ Psychol, Munich, Germany
[7] Univ Appl Sci & Arts Northwestern Switzerland, Sch Appl Psychol, Inst Humans Complex Syst, Riggenbachstr 16, CH-4600 Olten, Switzerland