Reference table
Nominal group technique vs Delphi, focus groups and brainstorming
A comparison of four group research formats: the nominal group technique, the Delphi method, focus groups and open brainstorming. It sets out the format, how anonymous each one is, what it produces and where it works best. Use it to choose a method when you need a group to generate ideas or agree priorities. Koji can collect ideas and rankings from many people as AI-moderated interviews.
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What's in this reference table
| Format | Anonymity | Output | Best for | |
|---|---|---|---|---|
| Nominal group technique | One live session, highly structured | Private ideas and votes | A ranked list of priorities | Agreeing priorities in one meeting |
| Delphi method | Several remote rounds | Fully anonymous | Expert consensus over rounds | Forecasts and expert agreement |
| Focus group | One live, moderated discussion | None | Rich discussion and reasons | Exploring attitudes and language |
| Open brainstorming | One live, free discussion | None | A long, unranked list | Warm-ups and team energy |
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<a href="https://www.koji.so/visuals/nominal-group-technique-vs-delphi-focus-groups"><img src="https://www.koji.so/visuals/nominal-group-technique-vs-delphi-focus-groups/nominal-group-technique-vs-delphi-focus-groups.png" alt="Table comparing the nominal group technique, Delphi method, focus groups and open brainstorming by format, anonymity, output and best use" width="1200" height="719" /></a>
<p>Source: <a href="https://www.koji.so/visuals/nominal-group-technique-vs-delphi-focus-groups">Nominal group technique vs Delphi, focus groups and brainstorming</a>, Koji</p>
