Prof Dr Samuel Greiff is head of research group, principal investigator, and Full Professor of Educational Assessment and Psychology at University of Luxembourg. He holds a PhD in cognitive and experimental psychology from the University of Heidelberg, Germany.


Prof Greiff has been awarded several national and international research funds by diverse funding organizations such as the German Ministry of Education and Research and the European Union (overall funding approx. 9.3 M €), was fellow in the Luxembourg research programme of excellency, and has published articles in national and international scientific journals and books (>100 contributions in peer-reviewed journals; many of them leading in their field). He has an extensive record of conference contributions and invited talks (>200 talks) and serves as editor for several journals, for instance as editor-in-chief for European Journal of Psychological Assessment, as associate editor for Intelligence and Journal of Educational Psychology, and as guest editor for Computers in Human Behavior, or Journal of Business & Psychology. He has a regular record of ad-hoc reviewing for around 75 different journals and funding agencies. He currently serves on nine editorial boards.


He has been and continues to be involved in the Programme for International Student Assessment (PISA) since the 2012 cycle, for instance as external advisor to the PISA 2012 and 2015 Expert and Subject Matter Expert Groups and as contracting partner at his institution. He serves also as chair of the problem solving expert group for the 2nd cycle of the Programme for the International Assessment of Adult Competencies (PIAAC). In these positions, he has considerably shaped the understanding of transversal skills across several large-scale assessments.


He has been working for several years on the assessment of transversal skills such as complex and collaborative problem solving and their role in the classroom, at work, and in private life. He also takes strong interest into the use of log file data and learning analytics for summative and formative assessment purposes. He and his team are dedicated at increasing the understanding, the measurement, and the application of cognitive and non-cognitive skills that shape our lives.


Research interests
large-scale assessments
computer-based assessment
problem solving
multivariate statistics
human intelligence
education in the 21st century

Latest content Samuel Greiff took part in

Behavioural & Cognitive Sciences
PANDEMIC Pandora's Box: The demographic, Economic, Social and Psychological impact of COVID-19
The COVID-19 pandemic has changed our world. The experiences we have had since the onset of the pandemic have affected us in many ways. The pandemic killed, but has also had a profound impact on the organization of employment and work, our behaviour, social dynamics and mental health. These effects have not been equal, being felt by some groups and societies much more than others.
Behavioural & Cognitive Sciences
From the University of Luxembourg to the NBA courts
A Personality assessment tool developed by the University of Luxembourg in 2016 is now used in the National Basketball Association in the United States of America. Coaches use the instruments developed by researchers from the Faculty of Humanities, Education and Social Work to build the best teams possible.
Behavioural & Cognitive Sciences
How do different confinement measures affect people across Europe?
Some of the first hardest-hit countries in Europe start planning to relax COVID-19 related restrictions. But how have those restrictions affected the populations? The University of Luxembourg launches a survey to compare the psychological effects of social distancing measures across Europe.
Faculty Blog
A survey to understand the psychological effects of social distancing measures in Luxembourg and the neighbouring countries.
In less than a month, COVID-19 has profoundly changed our daily habits. Between “home-office", “home-schooling” and only leaving our homes for basic necessities, our social interactions have been drastically reduced. Stress factors such as the loss of income, gloomy news and daily uncertainties must be added to this social isolation. If the need for social distancing measures is rarely questioned in principle, this does not mean that they are without consequences. Two researchers and their teams from the University of Luxembourg, Conchita D'Ambrosio and Claus Vögele, are launching an on-line questionnaire to better understand the impact of quarantine on the population in Luxembourg and the neighbouring countries.
Behavioural & Cognitive Sciences
How do Americans behave facing coronavirus?
Three researchers from the Department of Behavioural and Cognitive Sciences are conducting a survey to understand the psychological and behavioral effects that the COVID-19 might have on people in the United-States.