How many focus groups are needed to obtain useful results?
At least two focus groups are conducted with each set of individuals that have a different relationship to the product or service being studied. Almost all focus group projects have at least two of these “sub-groups” that are targeted. For example, if a new software program is being researched, two groups with different roles in the success of the product might be tested: the line staff who will actually use the software every day, and the management who would be responsible for purchasing the product and justifying the expense. In a situation like this, a minimum of four groups would be conducted: two with the software users, and at least two with the representatives from management. With other products or services the different groups may consist of current and former customers, men and women, several different age groups, or heavy, moderate, and light users of the product.
