Marketing research may be divided into methods that emphasize understanding “the customer” and methods that emphasize understanding “the market.” Emphasizes qualitative methods (interviews, focus groups, Voice of the Customer, composing questions for a survey) with customers. The companion course (15.822) deals with the market and emphasizes quantitative methods (sampling, survey execution, quantitative data interpretation, conjoint analysis, factor analysis).
The methods covered in 15.821 are often used in the “front-end” of market research project, whose second-stage is a quantitative survey. The quality of information gathered in the second-stage is greatly enhanced in this way.