The Dynamics between Student Affect and Behavior Occurring Outside of Educational Software. - Ryan Shaun Joazeiro de Baker; Gregory R. Moore; Angela Z. Wagner; Jessica Kalka; Aatish Salvi; Michael Karabinos; Colin Ashe; David Yaron (ACII (1), 2011)

Sensor-free automated detection of affect in a Cognitive Tutor for Algebra. - Ryan Shaun Joazeiro de Baker; Sujith M. Gowda; Michael Wixon; Jessica Kalka; Angela Z. Wagner; Aatish Salvi; Vincent Aleven; Gail Kusbit; Jaclyn Ocumpaugh; Lisa M. Rossi (EDM, 2012)

HART: the human affect recording tool. - Jaclyn Ocumpaugh; Ryan S. Baker 001; Ma. Mercedes T. Rodrigo; Aatish Salvi; Martin Van Velsen; Ani Aghababyan; Taylor Martin (SIGDOC, 2015)