Beyond binary correctness: Classification of students’ answers in learning systems

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Authors

PELÁNEK Radek EFFENBERGER Tomáš

Year of publication 2020
Type Article in Periodical
Magazine / Source User Modeling and User-Adapted Interaction
MU Faculty or unit

Faculty of Informatics

Citation
Web https://doi.org/10.1007/s11257-020-09265-5
Doi http://dx.doi.org/10.1007/s11257-020-09265-5
Keywords adaptive learning; student modeling; answer classification; response time
Description Adaptive learning systems collect data on student performance and use them to personalize system behavior. Most current personalization techniques focus on the correctness of answers. Although the correctness of answers is the most straightforward source of information about student state, research suggests that additional data are also useful, e.g., response times, hints usage, or specific values of incorrect answers. However, these sources of data are not easy to utilize and are often used in an ad hoc fashion. We propose to use answer classification as an interface between raw data about student performance and algorithms for adaptive behavior. Specifically, we propose a classification of student answers into six categories: three classes of correct answers and three classes of incorrect answers. The proposed classification is broadly applicable and makes the use of additional interaction data much more feasible. We support the proposal by analysis of extensive data from adaptive learning systems.
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