dr. N. (Niels) Smits


  • Faculty of Social and Behavioural Sciences
    Programme group: Methods and statistics
  • Visiting address
    REC-D
    Nieuwe Achtergracht 127  
  • Postal address:
    Postbus  15780
    1001 NG  Amsterdam
  • N.Smits@uva.nl

My expertise lies in applied statistics and psychometrics. I am especially interested in developing methods for efficient assessment like computerized adaptive testing and stochastic curtailment. Other interests are test construction, the analysis of missing data, (psychometric) decision theory, classification, and machine learning. In addition, I assist applied researchers in planning, analyzing and reporting their research.

2018

  • Smits, N., van der Ark, L. A., & Conijn, J. M. (2018). Measurement versus prediction in the construction of patient-reported outcome questionnaires: Can we have our cake and eat it? Quality of Life Research, 7(27), 1673-1682. DOI: 10.1007/s11136-017-1720-4  [details] 
  • Finkelman, M. D., Lowe, S. R., Kim, W., Gruebner, O., Smits, N., & Galea, S. (2018). Item Ordering and Computerized Classification Tests With Cluster-Based Scoring: An Investigation of the Countdown Method. Psychological Assessment, 30(2), 204-219. DOI: 10.1037/pas0000470  [details] 
  • Smits, N., Paap, M. C. S., & Böhnke, J. R. (2018). Some recommendations for developing multidimensional computerized adaptive tests for patient-reported outcomes. Quality of Life Research, 27(4), 1055-1063.
  • Finkelman, M. D., Jamison, R. N., Magnuson, B., Kulich, R. J., Butler, S. F., Smits, N., & Weiner, S. G. (2018). Computer-based testing and the 12-item Screener and Opioid Assessment for Patients with Pain-Revised: A combined approach to improving efficiency. Journal of Applied Biobehavioral Research, 0(0), e12145. DOI: 10.1111/jabr.12145 

2017

  • Flens, G., Smits, N., Terwee, C. B., Dekker, J., Huijbrechts, I., Spinhoven, P., & de Beurs, E. (2017). Development of a computerized adaptive test for anxiety based on the Dutch-Flemish version of the PROMIS item bank. Assessment. DOI: 10.1177/1073191117746742 
  • Fokkema, M., Smits, N., Zeileis, A., Hothorn, T., & Kelderman, H. (2017). Detecting treatment-subgroup interactions in clustered data with generalized linear mixed-effects model trees. Behavior Research Methods. DOI: 10.3758/s13428-017-0971-x 
  • Finkelman, M. D., Jamison, R. N., Kulich, R. J., Butler, S. F., Jackson, W. C., Smits, N., & Weiner, S. G. (2017). Cross-validation of short forms of the Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R). Drug and Alcohol Dependence, 178, 94-100. DOI: 10.1016/j.drugalcdep.2017.04.016  [details] 
  • Crins, M. H. P., Terwee, C. B., Klausch, T., Smits, N., de Vet, H. C. W., Westhovens, R., ... Roorda, L. D. (2017). The Dutch–Flemish PROMIS Physical Function item bank exhibited strong psychometric properties in patients with chronic pain. Journal of Clinical Epidemiology, 87, 47-58. DOI: 10.1016/j.jclinepi.2017.03.011  [details] 
  • Finkelman, M. D., Lowe, S. R., Kim, W., Gruebner, O., Smits, N., & Galea, S. (2017). Customized computer-based administration of the PCL-5 for the efficient assessment of PTSD: A proof-of-principle study. Psychological Trauma, 9(3), 379-389. DOI: 10.1037/tra0000226  [details] 
  • Flens, G., Smits, N., Terwee, C. B., Dekker, J., Huijbrechts, I., & de Beurs, E. (2017). Development of a Computer Adaptive Test for Depression Based on the Dutch-Flemish Version of the PROMIS Item Bank. Evaluation & the Health Professions, 40(1), 79-105. DOI: 10.1177/0163278716684168  [details] 

2016

  • Finkelman, M. D., Smits, N., Kulich, R. J., Zacharoff, K. L., Magnuson, B. E., Chang, H., ... Butler, S. F. (2016). Development of Short-Form Versions of the Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R): A Proof-of-Principle Study . Pain Medicine, 18(7), 1292-1302. DOI: 10.1093/pm/pnw210  [details] 
  • Smits, N. (2016). On the effect of adding clinical samples to validation studies of patient-reported outcome item banks: A simulation study. Quality of Life Research, 25(7), 1635-1644. DOI: 10.1007/s11136-015-1199-9  [details] 
  • Driessen, E., Smits, N., Dekker, J. J. M., Peen, J., Don, F. J., Kool, S., ... Van, H. L. (2016). Differential efficacy of cognitive behavioral therapy and psychodynamic therapy for major depression: A study of prescriptive factors. Psychological Medicine, 46(4), 731-744. DOI: 10.1017/S0033291715001853  [details] 
  • Smits, N., Finkelman, M. D., & Kelderman, H. (2016). Stochastic curtailment of questionnaires for three-level classification: Shortening the CES-D for assessing low, moderate, and high risk of depression. Applied Psychological Measurement, 40(1), 22-36. DOI: 10.1177/0146621615592294  [details] 
  • Boeschen Hospers, J. M., Smits, N., Smits, C., Stam, M., Terwee, C. B., & Kramer, S. E. (2016). Reevaluation of the Amsterdam Inventory for Auditory Disability and Handicap Using Item Response Theory. Journal of Speech, Language, and Hearing Research, 59, 373-383. DOI: 10.1044/2015_JSLHR-H-15-0156  [details] 
  • Crins, M. H. P., Roorda, L. D., Smits, N., de Vet, H. C. W., Westhovens, R., Cella, D., ... Terwee, C. B. (2016). Calibration of the Dutch-Flemish PROMIS Pain Behavior item bank in patients with chronic pain. European Journal of Pain, 20(2), 284-296. DOI: 10.1002/ejp.727  [details] 
  • Finkelman, M. D., Kulich, R. J., Butler, S. F., Jackson, W. C., Friedman, F. D., Smits, N., & Weiner, S. G. (2016). An investigation of completion times on the Screener and Opioid Assessment for Patients with Pain - revised (SOAPP-R). Journal of Pain Research, 9, 1163-1171. DOI: 10.2147/JPR.S123454  [details] 
  • Flens, G., Smits, N., Carlier, I., van Hemert, A. M., & de Beurs, E. (2016). Simulating Computer Adaptive Testing With the Mood and Anxiety Symptom Questionnaire. Psychological Assessment, 28(8), 953-962. DOI: 10.1037/pas0000240  [details] 
  • Terluin, B., Smits, N., Brouwers, E. P. M., & de Vet, H. C. W. (2016). The Four-Dimensional Symptom Questionnaire (4DSQ) in the general population: scale structure, reliability, measurement invariance and normative data: a cross-sectional survey. Health and Quality of Life Outcomes, 14, [130]. DOI: 10.1186/s12955-016-0533-4  [details] 

2015

  • Crins, M. H. P., Roorda, L. D., Smits, N., de Vet, H. C. W., Westenhovens, R., Cella, D., ... Terwee, C. B. (2015). Calibration and validation of the Dutch-Flemish PROMIS pain interference item bank in patients with chronic pain. PLoS One, 10(7), [e0134094]. DOI: 10.1371/journal.pone.0134094  [details] 
  • Smits, N., & Finkelman, M. D. (2015). Shortening the PHQ-9: a proof-of-principle study of utilizing Stochastic Curtailment as a method for constructing ultrashort screening instruments. General Hospital Psychiatry, 37(5), 464-469. DOI: 10.1016/j.genhosppsych.2015.04.011  [details] 
  • Smits, N., Kelderman, H., & Hoeksma, J. B. (2015). Een vergelijking van compensatoir en conjunctief toetsen in het hoger onderwijs. Pedagogische Studiën, 92(4), 150-160. [details] 
  • Finkelman, M. D., Kulich, R. J., Zacharoff, K. L., Smits, N., Magnuson, B. E., Dong, J., & Butler, S. F. (2015). Shortening the Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R): A proof-of-principle study for customized computer-based testing. Pain Medicine, 16(12), 2344-2356. DOI: 10.1111/pme.12864  [details] 
  • Fokkema, M., Smits, N., Kelderman, H., & Penninx, B. W. J. H. (2015). Connecting clinical and actuarial prediction with rule-based methods. Psychological Assessment, 27(2), 636-644. DOI: 10.1037/pas0000072  [details] 
  • Kerkhof, W., Stoel, R. D., Berger, C. E. H., Mattijssen, E. J. A. T., Hermsen, R., Smits, N., & Hardy, H. J. J. (2015). Design and results of an exploratory double blind testing program in firearms examination. Science & justice, 55(6), 514-519. DOI: 10.1016/j.scijus.2015.06.007  [details] 
  • Sie, H., Finkelman, M. D., Riley, B., & Smits, N. (2015). Utilizing response times in computerized classification testing. Applied Psychological Measurement, 39(5), 389-405. DOI: 10.1177/0146621615569504  [details] 
  • Sorsdahl, K., Stein, D. J., Cuijpers, P., Smits, N., Naledi, T., & Myers, B. (2015). The efficacy of a blended motivational interviewing and problem solving therapy intervention to reduce substance use among patients presenting for emergency services in South Africa: A randomized controlled trial. Substance abuse treatment, prevention, and policy, 10(46). DOI: 10.1186/s13011-015-0042-1  [details] 

2014

  • Terluin, B., Smits, N., & Miedema, B. (2014). The English version of the four-dimensional symptom questionnaire (4DSQ) measures the same as the original Dutch questionnaire: a validation study. The European journal of general practice, 20(4), 320-326. DOI: 10.3109/13814788.2014.905826 
  • Fokkema, M., Smits, N., Finkelman, M. D., Kelderman, H., & Cuijpers, P. (2014). Curtailment: A method to reduce the length of self-report questionnaires while maintaining diagnostic accuracy. Psychiatry Research, 215(2), 477-482. DOI: 10.1016/j.psychres.2013.11.003 
  • Smits, N., & Finkelman, M. D. (2014). Variable length testing using the ordinal regression model. Statistics in Medicine, 33(3), 488-499. DOI: 10.1002/sim.5936 

2013

  • Finkelman, M. D., Kulich, R. J., Zoukhri, D., Smits, N., & Butler, S. F. (2013). Shortening the Current Opioid Misuse Measure via computer-based testing: a retrospective proof-of-concept study. BMC Medical Research Methodology, 13, [126]. DOI: 10.1186/1471-2288-13-126 
  • De Kieviet, J. F., Stoof, C. J. J., Geldof, C. J. A., Smits, N., Piek, J. P., Lafeber, H. N., ... Oosterlaan, J. (2013). The crucial role of the predictability of motor response in visuomotor deficits in very preterm children at school age. Developmental Medicine and Child Neurology, 55(7), 624-630. DOI: 10.1111/dmcn.12125 
  • Fokkema, M., Smits, N., Kelderman, H., & Cuijpers, P. (2013). Response shifts in mental health interventions: an illustration of longitudinal measurement invariance. Psychological Assessment, 25(2), 520-531. DOI: 10.1037/a0031669 

2012

  • Finkelman, M. D., Smits, N., Kim, W., & Riley, B. (2012). Curtailment and Stochastic Curtailment to Shorten the CES-D. Applied Psychological Measurement, 36(8), 632-658. DOI: 10.1177/0146621612451647 
  • Smits, N., Zitman, F. G., Cuijpers, P., den Hollander-Gijsman, M. E., & Carlier, I. V. E. (2012). A proof of principle for using adaptive testing in Routine Outcome Monitoring: the efficiency of the Mood and Anxiety Symptoms Questionnaire -Anhedonic Depression CAT. BMC Medical Research Methodology, 12, 4. DOI: 10.1186/1471-2288-12-4 
  • Spee, H., Smits, N., & de Koning, H. (2012). Bruikbaarheid van Kessler Psychological Distress Scale (K10) voor prevalentieschatting van depressie en angststoornissen. TSG Tijdschrift voor Gezondheidswetenschappen, 90(3), 145-149.

2011

  • Smits, N., Cuijpers, P., & van Straten, A. (2011). Applying computerized adaptive testing to the CES-D scale: a simulation study. Psychiatry Research, 188(1), 147-55. DOI: 10.1016/j.psychres.2010.12.001 
  • Ekkers, W., Korrelboom, K., Huijbrechts, I., Smits, N., Cuijpers, P., & van der Gaag, M. (2011). Competitive Memory Training for treating depression and rumination in depressed older adults: a randomized controlled trial. Behaviour Research and Therapy, 49(10), 588-96. DOI: 10.1016/j.brat.2011.05.010 
  • Zhang, B., Fokkema, M., Cuijpers, P., Li, J., Smits, N., & Beekman, A. (2011). Measurement invariance of the Center for Epidemiological Studies Depression Scale (CES-D) among Chinese and Dutch elderly. BMC Medical Research Methodology, 11, 74. DOI: 10.1186/1471-2288-11-74 

2010

  • Smits, N. (2010). A note on Youden's J and its cost ratio. BMC Medical Research Methodology, 10, [89]. DOI: 10.1186/1471-2288-10-89 

2008

  • de Bruin, A. B. H., Smits, N., Rikers, R. M. J. P., & Schmidt, H. G. (2008). Deliberate practice predicts performance over time in adolescent chess players and drop-outs: a linear mixed models analysis. British Journal of Psychology, 99(Pt 4), 473-97. DOI: 10.1348/000712608X295631 
  • te Brake, H., Smits, N., Wicherts, J. M., Gorter, R. C., & Hoogstraten, J. (2008). Burnout development among dentists: a longitudinal study. European Journal of Oral Sciences, 116(6), 545-551. DOI: 10.1111/j.1600-0722.2008.00584.x  [details] 

2007

  • Smits, N., Cuijpers, P., Beekman, A. T. F., & Smit, J. H. (2007). Reducing the length of mental health instruments through structurally incomplete designs. International Journal of Methods in Psychiatric Research, 16(3), 150-60. DOI: 10.1002/mpr.223 
  • Smits, N., Smit, F., Cuijpers, P., & De Graaf, R. (2007). Using decision theory to derive optimal cut-off scores of screening instruments: an illustration explicating costs and benefits of mental health screening. International Journal of Methods in Psychiatric Research, 16(4), 219-29. DOI: 10.1002/mpr.230 
  • Smits, N., & Vorst, H. C. M. (2007). Reducing the length of questionnaires through structurally incomplete designs: An illustration. Learning and Individual Differences, 17(1), 25-34. DOI: 10.1016/j.lindif.2006.12.005 

2017

  • Zeileis, A., Gruen, B., Leisch, F., Umlauf, N., Smits, N., Birbaumer, M., & Ernst, D. Package ‘exams’: Automatic generation of exams in R

2016

  • Finkelman, M., Smits, N., Kulich, R., Zacharoff, K., Magnuson, B., Chang, H., ... Butler, S. (2016). A proof of concept for short forms of the Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R). The Journal of Pain, 17(4, supplement), S24-S25. [196]. DOI: 10.1016/j.jpain.2016.01.099 

2015

  • Huisman, A., Smits, N., & Kerkhof, A. J. F. M. (2015). Signaleren van suïcidaliteit bij jongeren met de VOZZ-vragenlijst. JGZ: tijdschrift voor jeugdgezondheidszorg, 47(6), 118-120. DOI: 10.1007/s12452-015-0035-5  [details] 

2015

  • Flens, G., Smits, N., Terwee, C. B., & de Beurs, E. (2015). Development of Dutch computer adaptive tests for anxiety and depression using the PROMIS item banks. Paper presented at 22nd Annual Conference of the International Society For Quality Of Life Research (ISOQOL) 2015, Vancouver, Canada.
  • Crins, M. H., Terwee, C. B., Westenhovens, R., van Schaardenburg, D-J., Smits, N., Joly, F., ... Roorda, L. D. (2015). Validation of the Dutch-Flemish promis pain behavior and pain interference item banks in patients with rheumatoid arthritis. Annals of the Rheumatic Diseases, 74(Suppl. 2), [THU0599]. DOI: 10.1136/annrheumdis-2015-eular.2335 
  • Finkelman, M., Kulich, R., Zacharoff, K., Smits, N., Magnuson, B., Dong, J., & Butler, S. (2015). Reducing the respondent burden of the Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R): an approach using curtailment and stochastic curtailment. The Journal of Pain, 16(4, Supplement), S22. DOI: 10.1016/j.jpain.2015.01.099 

Talk / presentation

  • van der Ark, L. A. (speaker), Jorgensen, T. (speaker) & Smits, N. (speaker) (17-1-2018). Programming in R: Intermediate, Consultation 2.0, Amsterdam , Netherlands.
  • Smits, N. (speaker) (19-7-2017). Measurement Versus Prediction in Test Construction, 82nd Annual Meeting of the Psychometric Society, Zurich, Switzerland.
  • Smits, N. (speaker) (25-11-2016). The application of psychometrics in clinical contexts: issues and new methods, Universidad Autónoma de Madrid.
  • Smits, N. (speaker) (28-7-2016). Stochastic curtailment using the isotonic sequential regression model, VII European Congress of Methodology, Palma de Mallorca, Spain.
  • Smits, N. (speaker) (19-2-2016). Stochastic curtailment using the isotonic sequential regression model, International Workshop on Psychometric Computing (Psychoco) 2016, Liège, Belgium.
  • Smits, N. (invited speaker) (17-12-2015). Don't ask too many questions: Stochastic curtailment of questionnaire data, Invited lecture at Empirical Economics and Econometrics Seminar, Innsbruck University, Innsbruck, Austria.
  • Crins, M. H. (speaker), Terwee, C. B. (speaker), Westenhovens, R. (speaker), van Schaardenburg, D.-J. (speaker), Joly, J. (speaker), Smits, N. (speaker), … Roorda, L. D. (speaker) (21-10-2014). Calibration and validation of the Dutch-Flemish PROMIS pain behavior and pain interference item banks in patients with rheumatoid arthritis, Paper presented at the 22nd Annual Conference of the International Society for Quality of Life Research, Vancouver, Canada.
This list of publications is extracted from the UvA-Current Research Information System. Questions? Ask the library  or the Pure staff  of your faculty / institute. Log in to Pure  to edit your publications. Log in to Personal Page Publication Selection tool  to manage the visibility of your publications on this list.
  • No ancillary activities

edit contact information edit tabs