neobehaviorism /-bihā″vē·əriz′əm/ [Gk, neos + ME, behaven, behavior] , a school of psychology based on the general principles of behaviorism but broader and more flexible in concept. It stresses experimental research and laboratory analyses in the study of overt behavior and in various subjective phenomena that cannot be directly observed and measured, such as fantasies, love, stress, empathy, trust, and personality. See also behaviorism.