Does consumer knowledge affect consumer responses to advertised reference price claims?

As expected, internal reference prices (IRPs) and purchase intentions for two product categories (microwave ovens and disposable razors) differed according to whether consumers possessed a high or low level of consumer knowledge about the product in this factorial design experiment. Contrary to theory and expectations, neither internal reference points nor purchase intentions were affected by exposure to comparative price advertisements. Students were used as subjects in a before-after procedure with approximately two weeks between pre- and postmeasures of IRPs and purchase intentions. Postmeasures were taken immediately after exposure to ads containing three levels of advertised reference prices. t tests indicated differences between high and low knowledge group IRP means before ad exposure. However, no ANOVA differences were detected in change in IRP or purchase intention scores after ad exposure. © 1994 John Wiley & Sons, Inc.