Authors: Shull, RL Gaynor, ST Grimes, JA

Citation: Rl. Shull et al., Response rate viewed as engagement bouts: Effects of relative reinforcement and schedule type, J EXP AN BE, 75(3), 2001, pp. 247-274

Authors: Gaynor, ST Thomas, AP Lawrence, PS

Citation: St. Gaynor et al., Dysphoric mood and preference for immediate versus delayed monetary reinforcement, PSYCHOL REP, 84(3), 1999, pp. 1281-1293