Social psychology a century ago.

America's dual interest in social welfare and practical science fueled the emergence of social psychology in the late 19th century. By that century's end, psychologists had presented diverse and sometimes contesting models of social psychology. These varied conceptualizations, however, were challenged by the discipline's growing dedication to the scientific method and experimentation, as well as the profession's need to produce knowledge that could be readily used to address current social problems and regulate social institutions. An appreciation of this late-19th-century moment of intellectual generativity and constraint affords an opportunity to reflect on the potentials and constraints of social psychology at the end of the 20th century.