Tinker20 colours, one turnstile.
Chapter 5 of 7
Twenty colours
A designer proposes twenty colours for the Buy button and tests every one against today’s blue at once.
This chapter: If you test twenty things, how often does one win by luck?
About this chapter
You will learn
- Every extra comparison is another chance of a false win
- Why a lone winner among many needs doubt
- A correction raises the bar for each comparison
Words you’ll meet
- Multiple comparisons
- Running many tests at once, each one another chance for luck to win.
- Correction
- A stricter bar for each test, so the whole family keeps its false wins near the level.
Step 1 of 5
None of the 20 colours truly changes buying; the simulation knows. Each is compared with blue.
Run the colour test.