If we understand social psychology to be an area where sociology and psychology overlap, or more precisely where we try to explain interaction on the basis of psychological and sociological propositions and concepts, we have singled out a field that should be quite challenging not only in theory and method but in the fundamental questions it raises for both sociology and psychology. Actually, the discipline is not that well integrated and is constituted by such disparate approaches as reinforcement theory, field theory, role theory, small group theory, game theory and psychoanalysis. Many sociologists have abandoned the field altogether. Nor have the proponents of these sub-fields made much effort to consolidate, integrate or reconcile their methodologies. Epistemological questions have been notably absent and only now have arguments from the philosophy of science point of view reemerged to revive the critical and potentially fruitful methodological discussions of earlier theorists (F. Allport; Lewin; Mead; Simmel) and their more recent followers (Homans; Malewski).