CRT · Reasoning
Cognitive Reflection Test
Simple-looking questions with tempting wrong answers.
What it measures
Your tendency to pause and check an intuitive answer before committing to it — a skill linked to better judgment and fewer reasoning errors.
Read the guide: The Cognitive Reflection Test: why smart people fall for simple traps →
How it works
- 10 short questions. Some need a number, others a choice.
- Each question has an answer that springs to mind immediately. It is often wrong.
- There is no time limit. Take a moment before you answer.
- Please do not use a calculator or search for the answers.
About your score
You get a reflection score out of 10, plus how often you picked the tempting wrong answer. The percentile uses provisional norms until enough people have taken this version.