@inproceedings{EDM-2015-Hayashi,
	author        = "Yugo Hayashi",
	booktitle     = "{Proceedings of the Eighth International Conference on Educational Data Mining}",
	ee            = "http://www.educationaldatamining.org/EDM2015/proceedings/short484-487.pdf",
	isbn          = "978-8-4606-9425-0",
	pages         = "484--487",
	publisher     = "{International Educational Data Mining Society}",
	title         = "{Psychological Effects of In-Group Activity Feedback in an Online Explanation Task: Lexical Network Analysis}",
	year          = 2015,
}