Answer:
The correct answer is: tracking studies.
Step-by-step 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.