Reed, P., Randell, J., Ranjith-Kumar, A. C., Gupta, P., & Searle, R. (2012). Influence of schizotypy on responding and contingency awareness on free-operant schedules of reinforcement. Learning and Individual Differences, 22(3), pp. 425-428. doi:10.1016/j.lindif.2012.01.006

Reed, Phil, Jordan Randell, Andrea Christiana Ranjith-Kumar, Prerna Gupta, and Rob Searle. "Influence of Schizotypy On Responding and Contingency Awareness On Free-operant Schedules of Reinforcement." Learning and Individual Differences 22, no. 3 (2012): 425-428.

Reed, Phil, et al. "Influence of Schizotypy On Responding and Contingency Awareness On Free-operant Schedules of Reinforcement." Learning and Individual Differences 22.3 (2012): 425-428.