High Quality Content by WIKIPEDIA articles! Chaining is an instructional procedure used in Behavioral psychology, experimental analysis of behavior and applied behavior analysis. It involves reinforcing individual responses occurring in a sequence to form a complex behavior. It is frequently used for training behavioral sequences (or "chains") that are beyond the current repertoire of the learner. The term is often credited to the work of B.F. Skinner, an American psychologist working at Harvard University in the 1930s. Skinner based most of his work on the research done by Edward Lee Thorndike at Harvard University in the 1890s.