Behavioral theory seeks to explain human behavior by analyzing the antecedents and consequences present in the individual's environment and the learned associations he or she has acquired through previous experience. This entry describes the various traditions within the behavioral perspective (classical conditioning, operant conditioning, cognitively mediated behavioral theory, and functional contextualism) and the clinical applications that are derived from them. Common criticisms are discussed in light of the ongoing evolution of behavioral theory and the fit of its tenets with the field of social work.