@inproceedings{EDM-2015-LangHOW,
	author        = "Charles Lang and Neil T. Heffernan and Korinn Ostrow and Yutao Wang",
	booktitle     = "{Proceedings of the Eighth International Conference on Educational Data Mining}",
	ee            = "http://www.educationaldatamining.org/EDM2015/proceedings/full144-149.pdf",
	isbn          = "978-8-4606-9425-0",
	pages         = "144--149",
	publisher     = "{International Educational Data Mining Society}",
	title         = "{The Impact of Incorporating Student Confidence Items into an Intelligent Tutor: A Randomized Controlled Trial}",
	year          = 2015,
}