Abstract
Learning analytics applications exploit data about learners. In addition to cognitive and physical data about learners, recent research is motivated by the correlation between data on the physiological dimension and the cognitive performance. In order to collect physiological data, different types of physiological sensors can be used, among which the popularization of brain-computer interfaces using wearable EEG sensors has sparked the interest of research in the field of education. The affective, attentional or motivational state of an individual can be determined using physiological parameters. The research question to be investigated is: How accurate are the algorithms (e.g., classifying attentional states) implemented in wearable EEG devices in a learning setting? This paper proposes a concurrent validity approach to verify the accuracy of the algorithms integrated in EEG devices, i.e., comparing the classifying output against the response of EEG band power. For this purpose, a wearable EEG device of NeuroSky has been deployed and attention was taken as a physiological metric of interest. In order to investigate the accuracy of NeuroSky’s attention algorithms in the context of learning, an experiment was conducted with 23 subjects, with mean age 24.17 ± 3.68, who utilized a pedagogical agent to learn Java syntax while having their attention measured by the NeuroSky’s EEG device. The results of the experiment support the claim that the device does in fact represent a user’s attention accurately in a learning setting.
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Notes
- 1.
https://store.neurosky.com/pages/mindwave (Accessed on 3rd February 2020).
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Bitner, R., Le, NT., Pinkwart, N. (2020). A Concurrent Validity Approach for EEG-Based Feature Classification Algorithms in Learning Analytics. In: Nguyen, N.T., Hoang, B.H., Huynh, C.P., Hwang, D., Trawiński, B., Vossen, G. (eds) Computational Collective Intelligence. ICCCI 2020. Lecture Notes in Computer Science(), vol 12496. Springer, Cham. https://doi.org/10.1007/978-3-030-63007-2_44
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