Marie Wiberg

Marie Wiberg is a Professor of Statistics with a specialty in Psychometrics at the Department of Statistics, Umeå School of Business, Economics and Statistics (USBE) at Umeå University, Sweden. She holds a PhD in Statistics from Umeå University (2003) and has held academic positions there since 2003, advancing from Lecturer (2004–2005) to Assistant Professor (2006–2010), Associate Professor (2010–2015), and full Professor (2015–present). She has also held visiting roles at McGill University (2005) and the University of Twente (2006).

Her research focuses on educational measurement and psychometrics, with emphasis on test equating, item response theory (both parametric and nonparametric), and international large-scale assessments like PISA and TIMSS. She has contributed to methodological advancements in kernel equating, statistical modeling, and the analysis of educational data. Her work bridges theoretical psychometrics with practical applications in standardized testing and policy analysis.

Prof. Wiberg has supervised numerous PhD students, including Gabriel Wallin (2020), Jonathan Wedman (2017), and Inga Laukityte (2017). She actively contributes to academic governance, serving as an editor for journals like Behaviormetrika and on editorial boards for International Journal of Testing. Her awards include the Young Researcher Career Award (2008) and the Royal Skyttean Prize (2008). She is also a former member of Sweden’s Young Academy (2014–2018).

Her research projects include developing statistical methods for standardized achievement tests (2020–2025) and analyzing Swedish student performance in international assessments (2007–2012). She collaborates internationally, with publications in Applied Psychological Measurement, Journal of Educational and Behavioral Statistics, and others.