Actimel is a dairy-based probiotic supplemental beverage made by Dannon. Originally, it was sold in organic food stores and only promoted in natural health magazines. The company has recently embarked on an extensive advertising campaign to promote the product to a larger health-conscious market. First, Dannon needs to explain to the general public the benefits of the product, and then it needs to create brand awareness.

To determine the long-term effects of its campaign Dannon could most effectively use?

The correct answer is: tracking studies.

Explanation:

Tracking studies is characterized as an instrument for measuring and evaluating the results of a particular company's marketing campaign. It is a relevant tool for analyzing how a campaign is capable of impacting positive long-term effects, such as consumer perception and satisfaction about a brand and the feelings involved about a new product or service.

In order to be successfully applied, a tracking study must be to set up a focus group and elaborate the necessary and correctly directed questions to obtain the data that it seeks for measurement.

The great benefit of this study is that it is longitudinal, that is, it analyzes views and opinions of the same group of people over a period of time, which ensures greater reliability and effectiveness of the data and observed changes to the measurement.