and International Affairs, at The University of Georgia. His research focuses on how employee attitudes and behavior are infl uenced by the interaction between characteristics of the employee and the employee's organizational work environment.Abstract: Nearly 70 years ago, Dahl noted the diffi culty of constructing a science of public administration that was plagued by three interrelated problems: values, behavior, and culture. Underlying all three problems was the presumption that public administration could establish a set of universal principles independent of moral or political ends, individual human diff erences, or social infl uences. In discussing these three broad and easily accessible themes, Dahl did more than identify and critique the fi eld's problems and presumptions. He also provided a road map to move the fi eld forward and establish a science of public administration. Drawing on the framework provided by Dahl, this article argues that the fi eld has made considerable progress in recognizing, if not addressing, each problem raised by Dahl. Even so, several current presumptions or omissions are also identifi ed that, if challenged, can provide additional possibilities to advance the science of public administration.