@conference {Vaddi:2015:VTC:2793107.2810302,
	title = {Validating Test Chambers to Study Cooperative Communication Mechanics in Portal 2},
	booktitle = {Proceedings of the 2015 Annual Symposium on Computer-Human Interaction in Play},
	series = {CHI PLAY {\textquoteright}15},
	year = {2015},
	pages = {721{\textendash}726},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	keywords = {communication, cooperation, experimentation, game analysis},
	isbn = {978-1-4503-3466-2},
	doi = {10.1145/2793107.2810302},
	url = {http://doi.acm.org/10.1145/2793107.2810302},
	author = {Vaddi, Deepika and Wehbe, Rina R. and Toups, Zachary O. and Stahlke, Samantha N. and Koroluk, Rylan and Lennart E. Nacke}
}
