Reed, P. (2020). Human free-operant performance varies with a concurrent task: Probability learning without a task, and schedule-consistent with a task. Learning & Behavior, 48, pp. 254-273. doi:10.3758/s13420-019-00398-1

Reed, Phil. "Human Free-operant Performance Varies With a Concurrent Task: Probability Learning Without a Task, and Schedule-consistent With a Task." Learning & Behavior 48 (2020): 254-273.

Reed, Phil. "Human Free-operant Performance Varies With a Concurrent Task: Probability Learning Without a Task, and Schedule-consistent With a Task." Learning & Behavior 48 (2020): 254-273.