Basic Marketing Research 7th Edition by Gilbert Churchill,Tom Brown,Tracy Suter

Exercise 8

The Juno Company, a manufacturer of clothing for large-size consumers, was in the process of %valuating its product and advertising strategy. Initial efforts consisted of a number of focus-group interviews. The focus groups consisted of 10 to 12 large men and women of demographic characteristics who were selected by the company's research department using on-the-street observations of physical characteristics.
a. What type of sampling method was used
b. Critically evaluate the method used.