Focus groups are well suited for some purposes, but poorly suited for others. In general, focus groups are very good for getting breadth—i.e., finding out what kinds of issues are important for consumers in a given product category. Here, it is helpful that focus groups are completely “open-ended:” The consumer mentions his or her preferences and opinions, and the focus group moderator can ask the consumer to elaborate. In a questionnaire, if one did not think to ask about something, chances are that few consumers would take the time to write out an elaborate answer. Focus groups also have some drawbacks, for example: