How can a marketer help a consumer to reduce cognitive dissonance?

First of all, promotion to the target market should be extensive and informative.

When consumers havae had previous experience with a good or service, the level of involvement typically decreases. After repeated product trials, consumers learn to make quick choices. Because consumers are familiar with the product and know whether it will satisfy their needs, they become less involved in the purchase. For example, a consumer purchasing cereal has many brands to choose from-just think of any grocery store cereal aisle. If the consumer always buys the same brand because it satifies his hunger, then he has a low level of involvement.