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K. Sijtsma

Full Professor
k.sijtsma@uvt.nl

Faculty of Social and Behavioural Sciences
Department of Methodology and Statistics

Most recent publications

Ginkel, J.R. van, Sijtsma, K., Ark, L.A. van der, & Vermunt, J.K. (2010). Incidence of missing item scores in personality measurement, and simple item-score imputation. Methodology: European Journal of Research Methods for the Behavioral and Social Sciences, 6(1), 17-30. Further information
Ligtvoet, R., Ark, L.A. van der, Marvelde, J.M. te, & Sijtsma, K. (2010). Investigating an invariant item ordering for polytomously scored items. Educational and Psychological Measurement, 70(4), 578-595. Further information
Sijtsma, K., & Emons, W.H.M. (2010). Nonparametric statistical methods. In B. McGaw, E. Baker, & P.P. Peterson (Eds.), International encyclopedia of education (pp. 347-353). Oxford: Elsevier. Further information
Evers, A., Lucassen, W., Meijer, R.R., & Sijtsma, K. (2009). COTAN Beoordelingssysteem voor de kwaliteit van tests. Amsterdam: Nederlands Instituut van Psychologen/Commissie Testaangelegenheden Nederland. Further information
Sijtsma, K. (2009). Correcting fallacies in validity, reliability, and classification. International Journal of Testing, 9(3), 167-194. Further information

Most recent publications

Ginkel, J.R. van, Sijtsma, K., Ark, L.A. van der, & Vermunt, J.K. (2010). Incidence of missing item scores in personality measurement, and simple item-score imputation. Methodology: European Journal of Research Methods for the Behavioral and Social Sciences, 6(1), 17-30. Further information
Ligtvoet, R., Ark, L.A. van der, Marvelde, J.M. te, & Sijtsma, K. (2010). Investigating an invariant item ordering for polytomously scored items. Educational and Psychological Measurement, 70(4), 578-595. Further information
Sijtsma, K., & Emons, W.H.M. (2010). Nonparametric statistical methods. In B. McGaw, E. Baker, & P.P. Peterson (Eds.), International encyclopedia of education (pp. 347-353). Oxford: Elsevier. Further information
Evers, A., Lucassen, W., Meijer, R.R., & Sijtsma, K. (2009). COTAN Beoordelingssysteem voor de kwaliteit van tests. Amsterdam: Nederlands Instituut van Psychologen/Commissie Testaangelegenheden Nederland. Further information
Sijtsma, K. (2009). Correcting fallacies in validity, reliability, and classification. International Journal of Testing, 9(3), 167-194. Further information

K. Sijtsma teaches the following subjects:

Research master: Latent Variable Measurement in the Social and Behavioural Sciences (424806) Further information
Research master: Structural Equation Models (424807) Further information
Individual Assessment in Organisations (760017) Further information

Management activities:

Chair ``Commissie Testaangelegen Nederland (COTAN; NIP)'' (Committee on
Psychological Testing in The Netherlands)
Member Education Committee, Graduate School IOPS
Member of Supervisory Board of CITO Arnhem (2009-2013)
President-Elect of the Psychometric Society (2009-2010)

Membership editorial boards:

Membership professional organizations:

Advisor:

Juror of Psychometric Society Dissertation Prize
Consultant of project ``IRT Software for Health Outcomes and Behavioral Cancer Research'', Multivariate Software, Los Angeles, USA
Consultant of CEVO (``Central Committee on National Examinations in Dutch Secondary Education'')

Contact details
Room P1106
PO Box 90153
5000 LE Tilburg