A series of experiments on operant variability by Neuringer and colleagues (e.g., Neuringer, 1986, 2002; Page & Neuringer, 1985) have been repeatedly cited as showing that behavioral variability can be reinforced by making reinforcement contingent on it. They showed that the degree of variability in pigeons' eight-peck sequences, as measured by U…

The notion of differentially reinforcing low rates of undesirable behavior (DRL) is examined. Further, the status of the full session DRL strategy as alternative to punishment is questioned in context of a strictly operant definition of punishment. A reexamination of the data from some studies reveals the possibility that Ss respond to said DRL…

Belke and Spetch's (1994) work with pigeons on choice between reliable and unreliable reinforcement is discussed. Hypothetical applied examples address variables that influence preference for unreliable reinforcement, including signaling and its context, conditioned reinforcement, and duration of reinforcement schedules. Implications regarding…

This response to a paper by Guess and Carr (EC 602 212) on stereotypy and self-injurious behavior in the disabled focuses on (1) potentially misleading statements that may discourage practitioners from operant approaches to stereotypy and self-injury, and (2) strengths and weaknesses of the model compared to existing operant models. (DB)