Muirne C. S. Paap

Image of Muirne C. S. Paap
Norwegian version of this page
Phone +47-22844413
Visiting address Gaustadalléen 30D None 0373 OSLO

Main academic interests


  • Test Theory
  • Item Response Theory
  • (Multidimensional) Computerized Adaptive Testing
  • Applying advanced methods to improve/support clinical decision making


  • Psychiatry
  • Clinical psychology
  • Health Assessment
  • Personality psychology
  • Educational measurement


Expertise and ambitions

My primary academic passion is to build bridges, and strengthen existing ones, between measurement theory and substantive/applied research. Using a suitable research design, measurement framework and (statistical) model are of paramount importance, in order to draw the correct conclusions from data. The advantages of these tools are evident and can and should be turned to good account; their true value lies in their ability to allow two important aspects of sound research to go hand in hand: scientific quality and societal relevance.  In my endeavor to establish and strengthen links between measurement theory and applied research, I have deepened my knowledge of – and experience with – latent variable modeling, (multidimensional) computerized adaptive testing, test theory (both classical and modern), qualitative research, quality of life research, psychopathology, personality disorders, epidemiology, health assessment, and educational measurement.

I am Associate Editor for Quality of Life Research and Editor-in-Chief for the Norwegian journal PsykTestBarn.




  • Dutch-Flemish PROMIS group
  • Helse Nord Trøndelag, Norway
  • Department of Special Needs Education, University of Oslo, Norway
  • Empirical Methods group, Friedrich-Schiller University Jena, Germany
  • Research group for personality disorders, Oslo University Hospital, Norway
  • Regional Kompetansetjeneste for rehabilitering i Helse Sørøst, Sunnaas Sykehus HF, Norway
  • Institute for Social Medicine, Epidemiology and Health, Charité Universitätsmedizin Berlin, Germany
  • The EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
  • Department of Research Methodology, Measurement, and Data-Analysis, University of Twente, The Netherlands



  • PhD, Psychiatry, 2011, University of Oslo, Norway
  • MSc, Clinical Psychology and Psychometrics, 2006, University of Groningen, The Netherlands. Graduated with honors.




Paap, M.C.S., He, Q., & Veldkamp, B.P. Selecting Testlet Features With Predictive Value for the Testlet Effect: An Empirical Study (2015). SAGE Open 5(2), 1-12. doi: 10.1177/2158244015581860.

Paap, M.C.S, Bode, C., Lenferink, L.I.M, Groen, L.C., Terwee, C.B., Ahmed, S., Eilayyan, O., & van der Palen, J. (2014). Identifying key domains of health-related quality of life for patients with Chronic Obstructive Pulmonary Disease: the patient perspective. Health and Quality of Life Outcomes 12, 106. doi: 10.1186/s12955-014-0106-3

Van den Berg, S.M., Paap, M.C.S., Derks, E.M., & Genetic Risk and Outcome of Psychosis (GROUP) investigators (2013). Using multidimensional modeling to combine self-report symptoms with clinical judgment of schizotypy. Psychiatry Research 206 (1), 75-80.

Paap, M.C.S., Meijer, R.R., Cohen-Kettenis, P., Richter-Appelt, H., De Cuypere, G., Kreukels, B.P.C., Pedersen, G., Karterud, S., Malt, U.F. and Haraldsen, I.R. (2012). Why the factorial structure of the SCL-90-R is unstable: comparing patient groups with different levels of psychological distress using Mokken Scale Analysis. Psychiatry Research 200 (2-3), 819-826.

Paap, M.C.S., Kreukels, B.P.C., De Cuypere, G., Richter-Appelt, H. Cohen-Kettenis, P. and Haraldsen, I.R (2011). Assessing the Utility of Diagnostic Criteria: A Multi-Site Study on Gender Identity Disorder. Journal of Sexual Medicine 1, 180-190. 

  • Lenferink, Anke; Effing, Tanja; Harvey, Peter; Battersby, Malcolm; Frith, Peter; van Beurden, Wendy; van der Palen, Job & Paap, Muirne C. S. (2016). Construct Validity of the Dutch Version of the 12-Item Partners in Health Scale: Measuring Patient Self-Management Behaviour and Knowledge in Patients with Chronic Obstructive Pulmonary Disease. PLoS ONE.  ISSN 1932-6203.  11(8) . doi: 10.1371/journal.pone.0161595 Full text in Research Archive
  • Paap, Muirne C. S.; Lenferink, Lonneke I. M.; Herzog, Nadine; Kroeze, Karel A. & van der Palen, Job (2016). The COPD-SIB: a newly developed disease-specific item bank to measure health-related quality of life in patients with chronic obstructive pulmonary disease. Health and Quality of Life Outcomes.  ISSN 1477-7525.  14(1) . doi: 10.1186/s12955-016-0500-0 Full text in Research Archive
  • Heylens, Gunter; Elaut, Els; Kreukels, Baudewijntje P.C.; Paap, Muirne C. S.; Cerwenka, Susanne; Richter-Appelt, Hertha; Cohen-Kettenis, Peggy T.; Haraldsen, Ira Hebold & de Cuypere, Griet (2014). Psychiatric characteristics in transsexual individuals: Multicentre study in four European countries. British Journal of Psychiatry.  ISSN 0007-1250.  204(2), s 151- 156 . doi: 10.1192/bjp.bp.112.121954
  • Paap, Muirne Caitlin Shonagh; Meijer, BR; Cohen-Kettenis, PT; Richter-Appelt, H.; De Cuypere, G.; Baudewijntje, P; Pedersen, Geir Feigum; Karterud, Sigmund; Malt, Ulrik Fredrik & Haraldsen, Ira Hebold (2012). Why the factorial structure of the SCL-90-R is unstable: comparing patient groups with different levels of psychological distress using Mokken Scale Analysis. Psychiatry Research.  ISSN 0165-1781.  200(2-3), s 819- 826 . doi: 10.1016/j.psychres.2012.03.012
  • Sütterlin, Stefan; Paap, MCS; Babic, S.; Kübler, A. & Vögele, Claus (2012). Rumination and age: some things get better. Journal of Aging Research.  ISSN 2090-2204.  267327, s 1- 10
  • Paap, Muirne Caitlin Shonagh; Kreukels, Baudewijntje P.C.; Cohen-Kettenis, Peggy T.; Richter-Appelt, Hertha; de Cuypere, Griet & Haraldsen, Ira Hebold (2011). Assessing the Utility of Diagnostic Criteria: A Multisite Study on Gender Identity Disorder. Journal of Sexual Medicine.  ISSN 1743-6095.  8(1), s 180- 190 . doi: 10.1111/j.1743-6109.2010.02066.x
  • Paap, Muirne Caitlin Shonagh; Meijer, Rob R.; Van Bebber, Jan; Pedersen, Geir G.; Karterud, Sigmund; Hellem, Frøydis Martha & Haraldsen, Ira Hebold (2011). A study of the dimensionality and measurement precision of the SCL-90-R using item response theory. International Journal of Methods in Psychiatric Research.  ISSN 1049-8931.  20(3), s E39- E55 . doi: 10.1002/mpr.347
  • Paap, Muirne Caitlin Shonagh & Haraldsen, Ira Hebold (2010). Sex-based differences in answering strategy and the influence of cross-sex hormones. Psychiatry Research.  ISSN 0165-1781.  175(3), s 266- 270 . doi: 10.1016/j.psychres.2009.07.020

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Published Sep. 30, 2015 4:34 PM - Last modified May 9, 2017 4:29 PM