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Which Cognitive Bias Runs Your Brain?

Twelve situations where one answer is the bias. Most people pick it without noticing.

12 questions · about 5 minutes

12 scenarios based on well-documented decision biases. Educational and entertaining — a real experiment would not tell you the answers.

1. You believe something about the world. You see an article arguing the opposite.

Read it properly, it might be right Skim it, looking for the weak part Check who wrote it before deciding to read Scroll past, I know the argument

2. You are two years into a degree you no longer want.

Leave if the next path is clearly better Weigh it purely on the remaining cost and benefit Finish it — two years is too much to waste Finish it because leaving would mean it was pointless

3. A jacket was 200, now marked down to 120. What is it worth?

Whatever I would pay if I saw no old price About 120, that is the market It is a 200 jacket for 120 80 saved is 80 earned

4. How likely are you personally to be affected by a common life setback?

About as likely as anyone Slightly less likely, I am careful Less likely, it does not really happen to me I will handle it if it comes

5. You hear about two plane incidents in a month. Your flight is next week.

Statistically nothing has changed Slightly more aware, same decision Noticeably more nervous Genuinely considering driving

6. Estimating how long a project will take, you:

Look at how long similar work actually took Estimate, then add a buffer Estimate based on the good version of the week Say the number that sounds acceptable

7. You are two hours into a bad film.

Leave, the two hours are gone either way Stay, might improve Stay, I have invested two hours Stay and complain throughout

8. Negotiating salary, they name a number first.

Ignore it, I researched my range Adjust my range slightly Negotiate up from their number Their number becomes the conversation

9. Someone you dislike does something genuinely good.

Update my view of them Note it, view mostly unchanged Assume a motive behind it Treat it as the exception

10. How risky is your city compared with the national average?

I would need the actual numbers Roughly average, I assume Worse — I hear about things constantly Better — nothing has happened to me

11. A relationship has been unhappy for a long time.

The question is only whether it works from here Try to fix it, with a limit Too many years to walk away now Leaving would waste everything we built

12. You research a decision online. What do you actually type?

The strongest case against what I want A neutral question Something close to what I hope to read The thing I want, plus 'is it worth it'

Keep going

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A playful reflection test for the energy you tend to bring into a room.

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A playful look at confidence, presence, spontaneity, and self-expression.

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Inner Weather Check

A gentle mood-metaphor test that describes your current inner atmosphere.

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Which Archetype Are You?

A playful identity test for the role you naturally play in stories, groups, and life.

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Your Social Battery Type

Find your playful social-energy style: spark, selective connector, cozy introvert, or observer.

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Your Friendship Role

A lighthearted look at what you bring to your friend group.

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Browse all 58 tests

Important note

Your answers are scored in your browser. Nothing is sent anywhere and nothing is stored.

These tests are for education and self-reflection. They are not diagnostic instruments and should not be used to diagnose or treat a mental-health condition. Anyone feeling unsafe, overwhelmed, or at risk should contact local emergency services or a qualified mental-health professional.

Which Cognitive Bias Runs Your Brain?

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What Is Your Vibe?

Main Character Energy

Inner Weather Check

Which Archetype Are You?

Your Social Battery Type

Your Friendship Role

Important note