Student Skill Models in Adaptive Testing

0468589 - ÚTIA 2017 RIV US eng C - Conference Paper (international conference)
Plajner, Martin - Vomlel, Jiří
Student Skill Models in Adaptive Testing.
Proceedings of the Eighth International Conference on Probabilistic Graphical Models. Brookline: Microtome Publishing, 2016 - (Antonucci, A.; Corani, G.; Polpo de Campos, C.), s. 403-414. JMLR: Workshop and Conference Proceedings, vol. 52. E-ISSN 1938-7228.
[International Conference on Probabilistic Graphical Models 2016 /8./. Lugano (CH), 06.09.2016-09.09.2016]
R&D Projects: GA ČR(CZ) GA16-12010S
Grant - others:Studentské grantová soutěž ČVUT(CZ) SGS16/175/OHK3/2T/14
Institutional support: RVO:67985556
Keywords : Bayesian networks * computerized adaptive testing * item response theory * generalised linear models
Subject RIV: JD - Computer Applications, Robotics
http://library.utia.cas.cz/separaty/2016/MTR/plajner-0468589.pdf

This paper provides a common framework, a generic model, for Computerized Adaptive Testing (CAT) for different model types. We present question selection methods for CAT for this generic model. We use three different types of models, Item Response Theory, Bayesian Networks, and Neural Networks, that instantiate the generic model. We illustrate the usefulness of a special model condition – the monotonicity – and discuss its inclusion in these model types. With Bayesian networks we use specific type of learning using generalized linear models to ensure the monotonicity. We conducted simulated CAT tests on empirical data. Behavior of individual models was assessed based on these tests. The best performing model was the BN model constructed by a domain expert; its parameters were learned from data under the monotonicity condition.
Permanent Link: http://hdl.handle.net/11104/0269442