mw. dr. S. (Suzanne) Jak

  • Faculteit der Maatschappij- en Gedragswetenschappen
    Programmagroep: Methoden en Technieken (M&T)
  • Nieuwe Achtergracht  127
    1018 WS  Amsterdam
    T:  0205251201
    T:  0205251557


I am a lecturer at the Methods and Statistics section at the department of Education, where I also wrote my PhD-thesis about testing measurement invariance using multilevel structural equation modelling. I am also working as a postdoctoral researcher at Utrecht University, where I continue research about measurement invariance, and also work on meta-analytical structural equation modeling.



  • 2002 - 2007, Organizational Psychology, University of Amsterdam
  • 2007 - 2008, Psychological Methods, University of Amsterdam



  • 2008, tutorials 'Basic research skills', Department of Psychology, University of Amsterdam.
  • 2009, reading group 'Structural Equation Modeling', Department of Educational Sciences, University of Amsterdam.
  • 2009 - 2012, teaching assistant 'Structural Equation Modeling', Department of Educational Sciences, University of Amsterdam.


Jak, S., Oort, F.J. & Dolan, C.V. (in press). Measurement bias in multilevel data. Structural

Equation Modeling.

Merz, E.M. & Jak, S. (2013). The long reach of childhood: Social relationships across the life course. Advances in  Life Course Research, 18, 212-222. 

Jak, S., Oort, F.J. & Dolan, C.V. (2013). A test for cluster bias: Detecting violations of measurement invariance across clusters in multilevel data. Structural Equation Modeling, 20, 265-282.

Jak, S., Roorda, D. L., Oort, F. J. & Koomen, H. M. Y. (2013). Meta-analytic structural equation modelling with missing correlations. Netherlands Journal of  Psychology, 67, 132 - 139.

Barendse, M.T., Oort, F.J., Jak, S. & Timmerman, M.E.  (2013). Multilevel exploratory factor analysis of discrete data. Netherlands Journal of  Psychology, 67, 114 - 121.

Spilt, J., Koomen, H.M.Y & Jak, S. (2012). Are boys better off with male and girls with female teachers? A multilevel investigation of measurement invariance and gender match in teacher-student relationship quality. Journal of  School Psychology, 50, 363 - 378.

Koomen , H.M.Y, Verschueren, K., van Schooten, E., Jak, S. & Pianta, R. C. (2012). Validating the Student-Teacher Relationship Scale: Testing Factor Structure and Measurement Invariance across Child Gender and Age in a Dutch Sample. Journal of  School Psychology, 50,  215 - 234.

Griffioen, D., de Jong, U. & Jak, S. (2012). Research self-efficacy of lecturers in non-university higher education. Innovation in Education and Teaching International, 50, 25-37.

Jak, S., Oort, F.J. & Dolan, C.V. (2010). Measurement bias and multidimensionality; an illustration of bias detection in multidimensional measurement models.  Advances in Statistical Analysis, 94, 129 - 137.

Jak, S. & Evers, A.V.A.M. (2010). Een vernieuwd meetinstrument voor organizational commitment. Gedrag en Organisatie, 23, 158 - 171.


  • S. Jak, F.J. Oort & C.V. Dolan (2014). Measurement bias in multilevel data. Structural Equation Modeling, 21(1), 31-39. 10.1080/10705511.2014.856694
  • M.T. Barendse, F.J. Oort, S. Jak & M.E. Timmerman (2014). Structural Equation Modeling of Discrete data: Model Fit after Pairwise Maximum Likelihood. Methodology.
  • M. Hoeve, S. Jak, G.J.J.M. Stams & W. H. J Meeuws (in press). Financial problems and delinquency in adolescents and young adults: A six-year three-wave study. Crime and Delinquency.







  • S. Jak (2013, September 27). Cluster bias: Testing measurement invariance in multilevel data. Universiteit van Amsterdam (112 pag.). Supervisor(s): prof.dr. F.J. Oort & prof.dr. C.V. Dolan.


  • S. Jak, A. Zand Scholten & F.J. Oort (Eds.). (2013). Netherlands Journal of Psychology, 67(4).
  • S. Jak, A. Zand-Scholten & F.J. Oort (Eds.). (2012). Netherlands Journal of Psychology, 67.
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  • Universiteit Utrecht
    Postdoctoraal onderzoeker