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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.haining 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.
Also found in: Wikipedia. polymerase chain reaction. The amplification of a specific DNA sequence, termed target or template sequence, that is present in a complex mixture, by adding two or more short oligonucleotides, also called primers, that are specific for the terminal or outer limits of the template sequence.