Focus Groups or One-on-One Interviews? How We Decide

If you’ve ever come to us knowing you need qualitative research but not totally sure what kind, you’re not alone. It’s one of the most common questions we get. And it’s a good one, because focus groups and in-depth interviews aren’t interchangeable. They’re built for different situations, and picking the right one upfront makes a real difference in what you get out of the research.

Here’s how we think through it.

What’s the difference?

A focus group brings a small group of participants together, typically five or six people, to discuss a topic in a moderated setting. We ask questions, people respond, and we follow the conversation where it goes. It’s an efficient way to gather feedback and perspectives from multiple people at once.

An in-depth interview (IDI) is a one-on-one conversation between a moderator and a single participant. Without the presence of a group, people tend to be more open, more detailed, and sometimes more willing to go places they wouldn’t in front of others.

Both are qualitative, meaning they’re designed to get at the “why” behind behavior and opinion rather than measure how many people feel a certain way. The question is which format serves your project best.

When a focus group is the right call

Focus groups work well when you want to hear from multiple people efficiently and a group setting doesn’t get in the way of honest answers. Say you’re gathering feedback on a new service from a broad customer base, or exploring general attitudes toward a topic across a community. You’re not looking for deep individual disclosure. You’re looking for a range of honest perspectives from people who represent your audience.

They also tend to make sense when your audience is broadly reachable: general consumers, residents, customers who don’t require significant effort or cost to recruit.

When in-depth interviews make more sense

A few things push us toward IDIs, and it usually comes down to one of three reasons.

The first is who you need to talk to. When your audience is niche, specialized, or hard to reach, a one-on-one format respects their time and tends to get a lot more out of the conversation. A senior executive or industry specialist isn’t going to open up about how they really make decisions when their peers are in the room. Put that same person in a one-on-one and you get a completely different level of candor.

The second reason is subject matter. Some topics carry an unexpected personal or vulnerable side, even when the research isn’t explicitly sensitive. Utility customers struggling to pay their bills, patients navigating a difficult healthcare experience: these aren’t things people readily open up about in a group setting. The one-on-one format gives participants room to be more transparent and more honest than they might otherwise be.

The third reason is depth and focus. In a one-on-one, you can spend as much time as the topic needs. You can go granular, follow a thread, and ask the same question five different ways if that’s what it takes to understand what someone really means. A group has to keep moving. An IDI doesn’t.

You don’t have to figure this out on your own

Most clients don’t come to us with the method already figured out, and they don’t need to. That’s what we’re here for. Tell us what you’re trying to learn and we’ll help you get there.

Get in touch — we’d love to help.