Do the effects of attitude toward the ad on consumer decisions endure beyond the scenarios that characterize previous research? in examining this question, we focus on the persistence of ad-attitude effects as a function of the level of attention at encoding and the delay between ad exposure and response. The results of an experiment designed to test our hypotheses suggest that ad-attitude effects do not persist in a number of instances. Over time, as memory for an ad fades, its effects on ad attitude dissipate. As a result, the ad-attitude effects on brand attitude that are reported in past research disappear after a delay. In fact, in certain situations likable ads are shown to have a detrimental impact on brand attitude. For instance, when it receives little attention, a highly affective ad (compared with a more neutral ad) may focus attention away from the brand claims and lead to a lower brand attitude after a delay.