When the B. F. Skinner Foundation reprinted Skinner's "Verbal Behavior" in 1992, Jack Michael wrote one of its two forewords, a detailed outline of the book's purpose and scope. On the 60th anniversary of the first publication (1957) of "Verbal Behavior", Jack reflects on the book's impact and its importance to the…

Barba's (2012) article deftly weaves three main themes in one argument about operant variability. From general theoretical considerations on operant behavior (Catania, 1973), Barba derives methodological guidelines about response differentiation and applies them to the study of operant variability. In the process, he uncovers unnoticed features of…

The target paper by Barba (2012) raises issues that were the focus of the author's first two publications on operant variability. The author will describe the main findings in those papers and then discuss Barba's specific arguments. Barba has argued against the operant nature of variability. (Contains 2 figures.)

In his article, the author claimed that studies of operant variability that use a lag-"n" or threshold procedure and measure the obtained variability through the change in U value fail to provide direct evidence that variability is an operant dimension of behavior. To do so, he adopted Catania's (1973) concept of the operant, which takes the…

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 experimental analysis of behavior (EAB) is in trouble. Financial support for basic operant-conditioning research is difficult to obtain; teaching and research positions in colleges and universities are few; and bright undergraduates join other fields for graduate study. One reason for the difficulty is that EAB basic research does not focus…

William H. Morse has played a major role in the experimental analysis of behavior. His view of operant behavior as the outcome of differential reinforcement provides an invaluable lesson in scientific research and theory. He studied schedules of reinforcement to generate an in-depth analysis of the complex interactions existing when contingencies…

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…

The author of this article presents his own explanation on the two types of conditioning--respondent and operant. He states that when withdrawal of a negative reinforcer is the contingency that increases the strength of the operant behavior, the stimulus will have a negative emotional response to the experimental chamber. However, when a positive…

Explores several aspects of behaviorism, including its contributions to current educational practice, its recent unpopularity, and challenges to behavioral researchers in the 1980s. Seventy-two references are appended. (Author/LLS)

Reviews the use of memory measures in the literature. Suggests problems with assumptions underlying Bogartz's proposed new measure. Responds to specific criticisms by claiming that Bogartz is critical of two measures that are not even used, unfamiliar with traditional conditioning theory, wrong in an assertion about traditional measures, and…

Responds to the general criticisms of Rovee-Collier, explaining a proposed new measure of infant memory in terms of four fundamental ideas earlier enumerated by Rovee-Collier and Shyi. Seeks to refute three of four specific criticisms made by Rovee-Collier, and admits a mistake related to the fourth criticism. (BC)

Argues that learning is an invariant process best understood from a dialectical perspective which demands that learning be viewed as an interaction between the organism and the environment. This view is contrasted with traditional operant approaches and with a Piagetian approach. (Author/DB)

A guest editorial comments on the acrimonious rhetoric and arguments exhibited in the debate over the use of aversives with individuals with mental retardation. The editorial urges members of the field to refocus their framing of the issues around respect for persons, beneficence, and justice. (JDD)

Draws from the empirical foundations of operant psychology to propose a unified theory, known as contingency analysis, for social work practice. Discusses the four propositions on which the theory is based that account for human behavior at all levels of social work practice. Shows that this approach has great utility for the profession.…