Fotograaf: Johannes Abeling

dhr. drs. S. (Sharon) Klinkenberg

  • Faculteit der Maatschappij- en Gedragswetenschappen
    Programmagroep: Psychological Methods
  • Bezoekadres
    REC G
    Nieuwe Achtergracht 129  Kamernummer: S.12
  • Postadres:
    Postbus  15937
    1001 NK  Amsterdam
    T: 0205256904


Sharon Klinkenberg is a senior lecturer at the Psychology department at the University of Amsterdam, the Netherlands. His work at the psychometric division includes implementing CAT procedures in web gaming environments, teaching the bachelor course scientific and statistical reasoning, and researching on the fly item calibration methods. His areas of interest include psychometric methods, IRT and CAT, web development, computer gaming and motivation.

Current Research

My Research at the department of psychology focuses on integrating computer adaptive testing into game-based online learning environments. One of the main projects I'm working on is the development of the Math garden ( The Math garden is a challenging web environment for children to practice arithmetic skills. It consists of a web-based computer-adaptive monitoring system, which tracks both accuracy and response time. Using a new model based on the Elo (1978) rating system and an explicit scoring rule, estimates of ability level and item difficulty are updated every trial. Items are sampled with a mean success probability of .75, making the tasks challenging yet not too difficult.


Here are some informative links about computer adaptive testing and item response theory.


A few other interesting links.

Music on Spotify

Listening to:

Surf Masterclass Digitaal Toetsen

Link naar prezi


  • Klinkenberg, S. (2017). The Role of Formative Assessment in a Blended Learning Course. In D. Joosten-ten Brinke, & M. Laanpere (Eds.), Technology Enhanced Assessment: 19th International Conference, TEA 2016, Tallinn, Estonia, October 5-6, 2016 : revised selected papers (pp. 63-71). (Communications in Computer and Information Science ; Vol. 653). Cham: Springer. DOI: 10.1007/978-3-319-57744-9_6  [details] 


  • van der Ven, S. H. G., Straatemeier, M., Jansen, B. R. J., Klinkenberg, S., & van der Maas, H. L. J. (2015). Learning multiplication: An integrated analysis of the multiplication ability of primary school children and the difficulty of single digit and multidigit multiplication problems. Learning and Individual Differences, 43, 48-62. DOI: 10.1016/j.lindif.2015.08.013  [details] 
  • Draaijer, S., & Klinkenberg, S. (2015). A Practical Procedure for the Construction and Reliability Analysis of Fixed-Length Tests with Randomly Drawn Test Items. In E. Ras, & D. Joosten-ten Brinke (Eds.), Computer Assisted Assessment : Research into E-Assessment: 18th international conference, CAA 2015, Zeist, The Netherlands, June 22-23, 2015 : proceedings (pp. 47-60). (Communications in Computer and Information Science; Vol. 571). Cham: Springer. DOI: 10.1007/978-3-319-27704-2_6  [details] 


  • Klinkenberg, S. (2014). High speed high stakes scoring rule: assessing the performance of a new scoring rule for digital asssesment. In M. Kalz, & E. Ras (Eds.), Computer Assisted Assessment : Research into E-Assessment: international conference, CAA 2014, Zeist, The Netherlands, June 30-July 1, 2014 : proceedings (pp. 114-126). (Communications in Computer and Information Science; Vol. 439). Cham: Springer. DOI: 10.1007/978-3-319-08657-6_11  [details] 


  • Jansen, B. R. J., Louwerse, J., Straatemeier, M., van der Ven, S. H. G., Klinkenberg, S., & van der Maas, H. L. J. (2013). The influence of experiencing success in math on math anxiety, perceived math competence, and math performance. Learning and Individual Differences, 24, 190-197. DOI: 10.1016/j.lindif.2012.12.014  [details] 


  • Klinkenberg, S., Straatemeier, M., & van der Maas, H. L. J. (2011). Computer adaptive practice of Maths ability using a new item response model for on the fly ability and difficulty estimation. Computers and Education, 57(2), 1813-1824. DOI: 10.1016/j.compedu.2011.02.003  [details] 


  • Klinkenberg, S., Straatemeier, M., & van der Maas, H. (2009). Serious gaming in de Rekentuin: spelenderwijs oefenen en meten. In M. van Zanten, B. Heijman, & M. Uwland (Eds.), Leren van evalueren: de lerende in beeld bij reken-wiskundeonderwijs: verslag van de 27ste Panama-conferentie gehouden op 21, 22 & 23 januari 2009 te Noordwijkerhout (pp. 161-174). Utrecht: FIsme, Universiteit Utrecht. [details] 
  • Straatemeier, M., Klinkenberg, S., & van der Maas, H. L. J. (2009). Gedifferentieerd en adaptief rekenonderwijs in de Rekentuin. Pulse Primair Onderwijs, 1(3), 32-34. [details] 
  • Straatemeier, M., van der Maas, H. L. J., & Klinkenberg, S. (2009). web-based en game-based leren is leuk! Vives, 98, 26-27. [details] 
  • Straatemeier, M., van der Maas, H., & Klinkenberg, S. (2009). Werken in de Rekentuin: spelenderwijs oefenen en meten. Willem Bartjens, 28(5), 4-7. [details] 
  • van der Maas, H., Straatemeier, M., & Klinkenberg, S. (2009). Rekenen in Rekentuin: ook voor zwakke rekenaars? Tijdschrift voor Remedial Teaching, 17(3), 18-21. [details] 


  • Klinkenberg, S. (2018). Education award 2018.

Wetenschappelijke positie

  • Klinkenberg, S. & van der Maas, H. L. J. (2010). Nieuwe scoreregel voor digitale toetsen, aanvraag Surf Digitaal toetsen: €80.266, SURFfoundation.
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