22 free tests · no sign-up
Find out what you really think.
Quizzes that catch the ideas you’ve got wrong, and personality tests that are honest about what they can tell you. Everything is scored in your browser, and nothing you answer is stored.
What have you got wrong?
Ten questions each, from probability to history, built on the mistakes almost everyone makes. See why after every answer, then fix the ones that caught you.
Rereading your notes: does it actually work?
10 questions · 4 min
How learning works test
Learning styles, cramming, rereading: ten study myths.
Five heads in a row. Is tails due?
10 questions · 5 min
Probability test
Ten questions, each built on a mistake almost everyone makes.
Ice cream sales and drownings rise together. Why?
10 questions · 5 min
Statistics test
p-values, averages, polls: ten traps from headlines and exams.
A bat and ball cost $1.10. What does the ball cost?
10 questions · 4 min
Thinking traps test
Puzzles and arguments that catch fast thinking.
Bowling ball or tennis ball: which lands first?
10 questions · 5 min
Physics misconceptions test
Gravity, motion, seasons: ten intuitions physics overturns.
What causes the Moon’s phases?
10 questions · 4 min
Space test
The Moon, the Sun, starlight: ten things we picture wrongly.
When water boils, what’s inside the bubbles?
10 questions · 4 min
Chemistry test
Boiling, burning, rust: ten everyday chemistry myths.
A tree weighs tonnes. Where did all that wood come from?
10 questions · 4 min
Biology misconceptions test
Evolution, the body, germs: ten confident beliefs that are wrong.
Does venting your anger help get it out?
10 questions · 4 min
Psychology myths test
Memory, lies, the full moon: ten myths about the mind.
Did medieval Europeans think the Earth was flat?
10 questions · 4 min
History myths test
Vikings, Napoleon, the pyramids: ten myths about the past.
When two people trade, does one always lose?
10 questions · 4 min
Economics test
Trade, prices, inflation: ten intuitions economics turns around.
A raise that bumps your tax bracket. Could you take home less?
10 questions · 5 min
Money test
Interest, tax brackets, fees: ten money traps.
Who are you, roughly?
The popular personality tests, each marked with how well the research behind it holds up. Every result links to the science behind it.
50 questions · 8 min
Big Five personality test
The five traits personality science actually measures.
Strong evidence
16 questions · 3 min
Introvert or extravert test
Where you get your energy, on one honest scale.
Strong evidence
18 questions · 4 min
Attachment style test
How you handle closeness, and what happens when it wobbles.
Good evidence
12 questions · 2 min
Morning person or night owl test
When your body clock peaks, and how to plan around it.
Good evidence
24 questions · 5 min
16 types personality test
Your four letters, and how close each one really was.
Popular, weak evidence
36 questions · 6 min
Enneagram test
Nine types, each built around what drives you.
Popular, little evidence
20 questions · 3 min
Love language test
Twenty quick choices, and the five languages ranked for you.
Popular, weak evidence
12 questions · 4 min
Communication style test
Twelve everyday situations, and what you actually say.
Useful framework
12 questions · 4 min
Conflict style test
Twelve disagreements, and the five ways people handle them.
Useful framework
24 questions · 4 min
DISC personality test
Your working style: dominance, influence, steadiness, conscientiousness.
Workplace tool, limited evidence
Want the background? Read the articles, starting with why personality tests can be wrong.