Focus groups are a moderate discussion with 6-12 people who share something in common, usually lasting around 60 minutes. They are used to learn views and opinions to help improve marketing plans and find out what customers want. Organizing effective focus groups requires choosing participants at random and from different audience segments. Moderators with backgrounds in psychology or communication should guide open-ended, neutrally presented questions and keep the conversation flowing. Analyzing focus groups involves a minimum of three people categorizing themes and conclusions drawn from participants' answers.