Size and setting matters

The size of the focus group and the setting in which it is held also affects quality data. The ideal size for a focus group is 5-8 people, because this allows enough diversity within the group as well as providing each participant room to share his or her opinions. It’s a good idea to over-recruit by about 20% to cover for any no-shows, too. The number of focus groups being held and the space being used will also help determine the number of participants in any given focus group. Ultimately we want to reach the point of saturation, where a full range of ideas have been expressed and new information isn’t being shared, so it’s up to the moderator’s discretion to achieve this quality.

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