Article Title,Year,Volume,Issue,Page Range,Author Toward a unified theory of anxiety,1967,4,,1-89,Epstein Some effects of observing violence upon the behavior of the observer,1978,8,,49-92,Geen The influence of punishment and related disciplinary techniques on the social behavior of children: theory and empirical findings,1967,4,,179-228,Parke Studies of empathic behavior in children,1978,8, ,1-47,Feshbach