How Much User Research Is Enough?

How Much User Research Is Enough?

As of 2025, Highline Beta argues that early-stage venture builders should conduct just enough user research to achieve directional clarity and move forward with testable hypotheses, typically requiring only 5-10 interviews rather than extensive research cycles.

Key Takeaways

Highline Beta advocates for focused discovery sprints that surface repeated behavior patterns and identify urgent pain points within 5-10 interviews, rather than pursuing research paralysis. The company emphasizes that research should be driven by specific learning goals—particularly validating or invalidating the riskiest assumptions—rather than arbitrary interview quotas. Teams should move forward when they can name a specific user with a clear job to be done and have solid assumptions ready to test next.

How many user interviews does Highline Beta recommend for early-stage research?

Highline Beta typically recommends 5-10 interviews for most early-stage discovery work, not 50. They suggest that if you're hearing the same patterns by interview six, you're probably ready to move forward. The focus should be on reaching saturation point where repeated behaviors and pain points emerge, rather than hitting an arbitrary number.

What are the signs that a team is over-researching according to Highline Beta?

Key red flags include continuing interviews when nothing new is emerging, trying to hit arbitrary interview numbers rather than stopping at saturation, and having no team member able to articulate what decision the research will inform. Other warning signs are stalling because "we might find something else" and stakeholders asking for more confidence rather than clarity.

What criteria does Highline Beta use to determine when research is sufficient?

Highline Beta moves forward when they hear repeated patterns in pain and behavior, can name a specific user with a real job to be done, and understand both functional and emotional user needs. They also require having a solid place to start ideating solutions and clear assumptions to test next, rather than relying on a magic number of interviews.

How does Highline Beta frame the purpose of early-stage user research?

The company frames research as a tool for achieving directional clarity to decide what to test, what to kill, and where to go next—not for perfect research or documentation. They focus on reducing uncertainty around the riskiest assumptions and ensuring research triggers either a decision or an experiment, emphasizing that discovery is only useful if it moves something forward.

The art of doing just enough to move with confidence.

At Highline Beta, we believe in customer exploration, but not research paralysis.

We’re not aiming for perfect research. We’re looking for directional clarity. The kind that helps you decide what to test, what to kill, and where to go next.

In early-stage venture building, there’s always tension between learning and moving. The question we hear most from founders and corporate teams is:

“How much research is enough before we make a decision?”

Here’s how we answer it.

Start With the Goal, Not the Method

The right amount of research depends on what you’re trying to learn, not how long you’ve been at it or how many interviews you’ve racked up.

We always ask:

  • What’s the riskiest assumption we’re making and how will we know when we’ve either validated or invalidated it?
  • What needs to be true for this to work?
  • What do we actually know, and what are we guessing?

Then we do just enough research to reduce that uncertainty.

Discovery ≠ Exploration Forever

We run short, focused discovery sprints designed to:

  • Surface repeated behavior patterns
  • Identify urgent, frequent, or emotionally charged pain points
  • Define a clear User + Need + Deeper Need

In most early-stage work, that takes 5 to 10 interviews—not 50.

If you’re hearing the same things by interview six, you’re probably ready to move. Keeping in mind, this is just the first step, and there will be more research occurring as you move through the venture building process.

We typically pair interviews with lightweight secondary research methods, including diving into what individuals are saying on social media. But we’re not writing ethnographies. We’re hunting for signals.

Research Without a Decision Is Just Documentation

Discovery is only useful if it moves something forward.

Ask yourself:

  • Are we solving a real problem for someone specific?
  • Can we write a testable “how might we” to generate useful solutions?
  • Are we ready to move into concept testing—or do we need to reframe?

If research isn’t triggering a decision or an experiment, don’t keep digging. Pause and clarify what you’re trying to learn.

How We Know We’ve Done Enough

We move forward when we:

✔ Hear repeated patterns in pain and behavior

✔ Can name a specific user with a real job to be done

✔ Understand both the functional and emotional needs of the user

✔ Have a solid place to start ideating solutions

✔ Have clear assumptions to test next

That’s it. There’s no magic number. Just enough insight to take the next step—and no more.

A Few Red Flags You’re Over-Researching

  • You’re still running interviews, but nothing new is emerging
  • You’re trying to hit an arbitrary number of interviews rather than quitting once you hit a saturation point
  • No one on the team can say what decision the research is informing
  • You’re stalling because “we might find something else”
  • Stakeholders keep asking for more confidence, but not more clarity

Article content

User research is critical. But too much of it, too early, slows teams down and delays learning that only happens in the real world.

We believe the best venture builders are curious, focused, and ruthless about moving from insight to action.

So do just enough research to build a real hypothesis. Then get out of the building—and test what really matters.

Missed last week's edition? Find it here : https://www.linkedin.com/pulse/what-users-say-vs-actually-do-highlinebeta-s6dbc

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