High Quality Content by WIKIPEDIA articles! Behavioralism (or behaviouralism) is an approach in political science, which emerged in the 1930s in the United States. It represents a sharp break from previous political science. This is because it emphasized an objective, quantified approach to explain and predict political behavior. It is associated with the rise of the behavioral sciences, modeled after the natural sciences. This means that behavioralism tries to explain behavior with an unbiased, neutral point of view.