Marketing academics have a long history of providing guidance to those conc
erned with assessing an ad's ability to mislead consumers. However, few rec
ommendations have been offered regarding the specific measures to be employ
ed in copy tests that examine the misleading effects associated with compar
ative advertisements. This issue is important, given that determining wheth
er an advertisement misleads consumers ultimately rests on the sensitivity
of the measures used in copy testing. The authors offer the framing corresp
ondence hypothesis as a guide to developing measures that provide a precise
assessment of the misleading effects that may arise from various types of
comparative advertising.