Question 1

What is a product hypothesis?

Accepted Answer

A clear, specific, testable statement that predicts how a change or feature will affect user behavior or a business outcome, framed so it can be validated or invalidated with evidence.

Question 2

Where does the idea of a product hypothesis come from?

Accepted Answer

From the scientific method, where a hypothesis is a testable prediction an experiment is designed to confirm or reject. A product hypothesis applies the same rigor to product decisions.

Question 3

What is the most common format for a product hypothesis?

Accepted Answer

The "If we do X, then Y will happen, because Z" format, where the "because" states the underlying assumption you are really testing.

Question 4

What makes a good product hypothesis?

Accepted Answer

It is specific, testable, measurable, falsifiable, and states the reasoning behind the predicted outcome, focusing on behavior change rather than just shipping a feature.

Question 5

What does "falsifiable" mean for a hypothesis?

Accepted Answer

It means the statement is framed so it can be proven wrong. A belief that cannot possibly be disproven is not a real hypothesis.

Question 6

Why is the "because" part important?

Accepted Answer

It makes the underlying assumption explicit and challengeable, so you are testing the real belief behind the change, not just the change itself.

Question 7

How do you test a product hypothesis?

Accepted Answer

By defining the metric and success threshold in advance, choosing a fitting test method like an A/B or fake door test, building the smallest test, and comparing results honestly.

Question 8

What are the possible outcomes of testing a hypothesis?

Accepted Answer

Validated, invalidated, or inconclusive, leading you to persevere with the idea, drop or rethink it, or run a sharper test.

Question 9

Is an invalidated hypothesis a failure?

Accepted Answer

No. A disproven hypothesis is a precise, valuable piece of learning about your users, which is exactly what makes hypothesis-driven work useful.

Question 10

How does a product hypothesis relate to Build-Measure-Learn?

Accepted Answer

It is the natural starting point of the loop, defining what you are trying to learn before you build, which keeps experimentation honest.

What Is a Product Hypothesis?

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