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Previous research has found a positive shift in brand attitude after exposure to product placements. The study presented here investigates conditions under which product placements may cause a negative shift in brand attitude. The results reveal that prominent placements can negatively impact brand attitudes of viewers who report high levels of program liking. Conversely, viewers reporting lower levels of program liking shift brand attitude in a positive direction after exposure to a prominent placement. However, the positive shift in brand attitude for participants with lower program liking disappears when a persuasive-intent prime precedes exposure to the placement. Subtle placements are less likely to result in negative shifts in brand attitude. The Persuasion Knowledge Model (Friestad and Wright 1994) is used to explain the results.
Cowley et al. (Tue,) studied this question.