Hullian learning theory

n. A form of learning theory formulated by Clark Hull (1884-1952) in which all behavior and learning are initiated by needs and directed toward the reduction of those needs. In the theory, habits are formed by the reinforcement of random behaviors, and there are mathematical relationships among numerous variables, including habit strength, reinforcement, stimulus generalization, extinction, and delay in responding. The theory is largely ignored in recent decades because of its failure to predict behavior accurately.