Instruments

Do you have product-market fit, or just a number?

The Sean Ellis test with the margin of error around it, a verdict about that margin, and every segment against the forty percent line.

The responses

One question, four answers, and the count of each. Ask only people who have used the core product in the last two weeks: the test is about losing something somebody relies on, and somebody who never got started has nothing to lose.

How would you feel if you could no longer use this product?

Very disappointed Somewhat disappointed Not disappointed I no longer use it

Leave the lapsed answers out of the score On by default. Somebody who has already stopped answers a different question, and counting them drags the score toward a number about churn.

Segments

Optional, up to six. Enter the same four counts per group and the overall score becomes their sum, so the figures can only be typed in one place. Fit usually lives in one group before it lives in the average.

Segment Very disappointed Somewhat disappointed Not disappointed I no longer use it
Segment Very disappointed Somewhat disappointed Not disappointed I no longer use it
Segment Very disappointed Somewhat disappointed Not disappointed I no longer use it

Very disappointed

60.0%

Margin46.2% to 72.4%
responses50

Clears 40% with confidence. The bottom of the margin is still above the line, so the result holds whichever end of it is true.

Every segment against the line

Weekly users 25 responses72%Monthly users 17 responses53%Signed up this month · too few to read 8 responses38%0%20%40%60%80%100%40%

Share answering very disappointed

Weekly users carries the score: it reads 72.0% where the whole group reads 60.0%. Without it the rest answer 48.0%.

What to do with this

Two pages, for the two things this result sends you to do.

Plan the sample Ask the follow-up questions

Summary to paste into a ticket

Very disappointed: 60.0%
Margin: 46.2% to 72.4% (50 responses)
Verdict: Clears 40% with confidence. The bottom of the margin is still above the line, so the result holds whichever end of it is true.
Segments: Weekly users 72.0% (25) · Monthly users 52.9% (17) · Signed up this month 37.5% (8, too few to read)

https://youex.de/tools/product-market-fit/