Telephone number:	+31 (0)71 527 3620
E-Mail:	jginkel@fsw.leidenuniv.nl
Faculty / Department:	Faculteit der Sociale Wetenschappen, Instituut Pedagogische Wetenschappen, Algemene en Gezinspedagogiek
Office Address:	Pieter de la Court gebouw Wassenaarseweg 52 2333 AK Leiden Room number 4B23

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Academic career

• Assistant professor at the Data Theory Group, Department of Education, Leiden University (2008-) Postdoc at the Free University Medical Center at Amsterdam (2007-2008).
• Ph.D. Social and Behavioral Sciences, department of Methodology and Statistics, Tilburg University (2007). Title of thesis: "Multiple imputation for incomplete test, questionnaire, and survey data".
• Ph.D. Representative IOPS (2004-2006).
• Ph.D. student at the faculty of Social and Behavioral Sciences, department of Methodology and Statistics, Tilburg University (2003-2007).
• M.A. in Psychology, Department of Psychological Methods, University of Amsterdam (2002).
• Master's thesis on the robustness of three different regression techniques under violation of various assumptions, supervision: Dr. Wulfert P. van den Brink (2002).
• Internship at the Academic Medical Center of the University of Amsterdam (2001), supervision: Dr. Frans J. Oort.

Publications - published works

• Alisic, E., Van der Schoot, T.A.W., Van Ginkel, J.R., & Kleber, R.J. (in press). Looking beyond Posttraumatic Stress disorder in children: Posttraumatic stress reactions, posttraumatic growth, and quality of life in a general population sample. Journal of Clinical Psychiatry.
• Van Ginkel, J. R., Van der Ark, L. A., & Sijtsma, K. (2007). Multiple imputation for item scores when test data are factorially complex. British Journal of Mathematical and Statistical Psychology, 60, 315-337.
• Van Ginkel, J. R., Van der Ark, L. A., & Sijtsma, K. (2007). Multiple imputation of test and questionnaire data and influence on psychometric results. Multivariate Behavioral Research, 42, 387-414.
• Van Ginkel, J. R. Van der Ark, L. A., Sijtsma, K., & Vermunt, J. K. (2007). Two-way imputation: A Bayesian method for estimating missing scores in tests and questionnaires, and an accurate approximation. Computational Statistics and Data Analysis, 51, 4013-4027.
• Van Ginkel, J. R., & Van der Ark, L. A. (2005). SPSS syntax for missing value imputation in test and questionnaire data. Applied Psychological Measurement, 29, 152-153.
• Berghout, C., Van Ginkel, J., Groeneweg, N., Israëls, H., Kas, A., Lesniewski, U., Van Stempvoort, J. (2002). Should subjects be forewarned of the possible psychological consequences of filling out a PTSD questionnaire? Psychological Reports, 90, 461-465.

Publications - unpublished works

• Coupé, V.M.H., Van Ginkel, J.R., Sneijders, J.P.F., Meijer, C.J.L.M., Berkhof, J. (2008). Model-based cost-effectiveness of HPV 16/18 vaccination in the Netherlands. Manuscript submitted for publication.
• Jharap, B., Seinen, M. L., Van Ginkel, J. R., Linskens, R. K., Mulder, C. J. J., Kneppelhout, J. C., De Boer, N. K., & Van Bodegraven, A.A. (in progress). Thiopurine therapy in inflammatory bowel disease patients: analysis of two 8-years interception cohorts.