Discrete trials (DT) procedures are frequently used to study nonhuman animal behavior and cognition in a laboratory setting. For example, discrete trials can be used to examine behavioral and cognitive processes such as drug self-administration (e.g., Stretch and Gerber 1977), memory (e.g., delayed matching to sample tasks; Berry and Odum 2014), delay discounting (thought to measure impulsive decision-making, e.g., Woolverton et al. 2007), and stimulus control (Hinson and Higa 1989). Many schedules of reinforcement exist that define the presentation of a reinforcer following a given behavior (e.g., lever pressing or key pecking), from simple fixed ratio schedules to complex concurrent or chain schedules. Discrete trial procedures allow the experimenter to precisely control the timing of trials and earned reinforcers across a session following a given behavior (Dobrin and Roberts 2012). While discrete trial paradigms can be used to understand behavior and cognition among...