Evaluating Consumer Protection Programs: Part I. Weak but commonly used research designs, Journal of Consumer Affairs
Part I. Examines several methodological approaches used in evaluating consumer protection programs. Background on quasi-experimental design; Information on the after-only design; Details on the comparison group design; Information on the before-after design.
Lynn W. Phillips, Bobby Calder
Phillips, W. Lynn, and Bobby Calder. 1979. Evaluating Consumer Protection Programs: Part I. Weak but commonly used research designs. Journal of Consumer Affairs. 13(2): 157-185.