What Happens in a Focus Group
A trained moderator leads a guided discussion with 6-10 participants who share relevant characteristics (e.g., target customers, category users, specific demographics). The session typically lasts 60-90 minutes and explores a structured set of topics defined in advance by a discussion guide.
When to Use Focus Groups
- Concept testing: Gauging initial reactions to new product or service ideas
- Message testing: Understanding how marketing language resonates and what terminology customers actually use
- Exploratory research: Generating hypotheses before designing a larger quantitative study
- Understanding the "why": Exploring motivations and emotional drivers behind behaviors identified in quantitative data
Focus Groups vs In-Depth Interviews
| Factor | Focus Group | In-Depth Interview |
|---|---|---|
| Group dynamics | Yes — can spark ideas, but risk of groupthink | No — pure individual perspective |
| Sensitive topics | Less suitable | Better for sensitive/personal topics |
| Cost per respondent | Lower | Higher |
| Depth per respondent | Lower (shared time) | Higher |
| B2B complex decisions | Less suitable | Better for understanding individual stakeholder roles |
Common Focus Group Pitfalls
- Dominant participants: One vocal participant can skew the discussion; skilled moderation is essential
- Social desirability bias: Participants may give answers they think are socially acceptable rather than their true opinion
- Small sample limitation: Findings from 2-3 focus groups (12-30 people) cannot be statistically generalized to a broader market
Frequently Asked Questions
How many focus groups do I need?
Typically 3-5 groups per audience segment to reach thematic saturation. If you have multiple distinct segments (e.g., different age groups or customer types), run separate groups for each.
Are online focus groups as effective as in-person?
For most research objectives, yes. Online focus groups via video conferencing have become standard since 2020, offering cost savings and broader geographic reach with comparable data quality for most topics, though in-person remains preferable for product handling/tasting studies.
