A theoretical model of person memory and judgment--the processes underlying the formation of person impressions--is presented. It incorporates both specific behaviors and abstract personality dispositions or behavioral tendencies. The model accounts for factors affecting recall of social information and interpersonal judgments and is applicable to…

This essay introduces a series of studies developing a statistical theory of elementary learning processes. An attempt is made to derive relations among commonly used measures of behavior and quantitative expressions describing simple learning phenomena. Laws of the theory state probability relations between momentary changes in behavioral and…