ZIB Education

Dr. Tiago Fragoso

PISA data manager – scaling
Research associate

Phone: +
Room: 220
Hours: on appointment
Mail: Tiago Fragoso



  • PISA data manager (scaling) in Germany (since 03/2024)
  • Policy Analyst at the Organization for Economic Co-operation and Development (OECD), working with the international management and implementation of the Programme for International Student Assessment (PISA), and of the PISA for Schools projects (from 01/2020 to 03/2024).
  • Researcher at Fundação Cesgranrio (Rio de Janeiro, Brazil), part of the data analysis and scaling teams for most of Brazil’s large-scale educational assessments and entrance exams (from 02/2016 to 12/2019).
  • Postdoctoral researcher, Department of Applied Mathematics and Statistics, Universidade de São Paulo – São Carlos (from 12/2014 to 01/2016).
  • Doctoral Student in Statistics, Department of Statistics, Universidade de São Paulo, Brazil (09/2010 to 09/2014), Advisor: Prof. Dr. Júlia Pavan Soler, Title of the Dissertation: “Bayesian variable selection for multilevel Item Response Theory models with applications in Genomics”.
  • Masters student in Applied Mathematics and Computer Science, Department of Applied Mathematics and Statistics, Universidade de São Paulo – São Carlos, Brazil (03/2007 to 08/2010), Advisor: Prof. Dr. Mariana Cúri, Title of the Thesis: “Multidimensional Item Response Models”.
  • Diploma in Mathematics, Universidade de São Paulo – São Carlos, Brazil (04/2004 – 12/2006).

Research Interests

  • International Student Assessment
  • Large-scale educational assessment and surveys methodology and implementation
  • Student motivation and engagement
  • Psychometrics, Computational Psychometrics, Machine Learning and Artificial Intelligence


  • PISA 2025
  • PISA 2022

Selected Publications

  • Fragoso, T.M., Bertoli, W., Louzada, F.  (2017) Bayesian Model Averaging: A Systematic Review and Conceptual Classification. International Statistical Review, v. 86, p. 1-28, http://dx.doi.org/10.1111/insr.12243
  • Gysi, D.M., Voigt, A., Fragoso, T. M.,  Almaas, E.  Nowick, K. (2018) wTO: an R package for computing weighted topological overlap and a consensus network with integrated visualization tool. BMC Bioinformatics, v. 19, p. 392, http://dx.doi.org/10.1186/s12859-018-2351-7
  • Fragoso, T.M., De Andrade, M., Pereira, A., Rosa, G.J.M., Soler, J.M.P (2016)  Bayesian Variable Selection in Multilevel Item Response Theory Models with Application in Genomics. Genetic Epidemiology, v. 40, p. 253-263, http://dx.doi.org/10.1002/gepi.21960
  • Fragoso, T.M., Giolo, S., Pereira, A., De Andrade, M., Soler, J.M.P (2014) Using Item Response Theory to Model Multiple Phenotypes and Their Joint Heritability in Family Data. Genetic Epidemiology (Print), v. 38,, Online, 2014. http://dx.doi.org/10.1002/gepi.21784
  • Fragoso, T.M. , Cúri, M. (2013)  Improving psychometric assessment of the Beck Depression Inventory using Multidimensional Item Response Theory. Biometrical Journal (1977), v. 55, p. 527-540 http://dx.doi.org/10.1002/bimj.201200197


089 289 28274 zib.edu@sot.tum.de