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The item response theory model for an AI-based adaptive learning system
conference contribution
posted on 2019-01-01, 00:00 authored by W Cui, Z Xue, J Shen, G Sun, Jianxin LiJianxin Li© 2019 IEEE. Item characteristics (e.g. item difficulty), and students' latent traits (e.g. student ability) are essential in a personalized learning system. In such system, items of different characteristics need to be recommended according to students' latent traits. The item response theory can fulfill such requirements. In this paper, we present a detailed description of the student ability and the item difficulty measurement based on an item response theory model. The model is evaluated using real data regarding the math and the English curriculum gathered from students' learning processes during the usage of the Squirrel AI Learning System. The data is regarding the math and the English curriculum. It is proved that the difficulty evaluated by teachers minus the difficulty estimated from the data approximately follows a normal distribution. The mean value of students' abilities approaches 0.50 as the numbers of their attempts on questions increase.
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Event
Information Technology Based Higher Education and Training. Conference (18th. 2019, Magdeburg, Germany)Pagination
1 - 6Publisher
IEEELocation
Magdeburg, GermanyPlace of publication
Piscataway, N.J.Publisher DOI
Start date
2019-09-26End date
2019-09-27ISBN-13
9781728124643Language
engPublication classification
E1 Full written paper - refereedTitle of proceedings
ITHET 2019 : Proceedings of the 18th International Conference on Information Technology Based Higher Education and Training 2019Usage metrics
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