🧠 Which cognitive bias rules you?

We all have mental shortcuts that play tricks on us. Seven everyday situations — sales, restaurants, a deadline — reveal the one that weighs most on your decisions, each with a simple antidote. Then the Cognitive Biases quiz is waiting to take you further.

1. You read an article that contradicts your opinion. I quickly look for another article that proves me right Whatever, it'll all work out I stick to my view: changing would mean admitting a loss I check what my friends think

2. A project is due on Friday. I mostly notice the signs that it's going well “Easy, that's a two-hour job” I won't drop the part I've already sunk time into I do what the rest of the team does

3. During the sales, you… Buy the brand you already like Are sure the purchase will pay for itself Buy because missing 50% off would be silly Grab the item everyone is fighting over

4. Tonight's restaurant? The one I know: it's bound to be good The new one, it's going to be great The one I have a voucher for The one with a queue outside

5. You lose €20 at a game. Proof that the game is rigged I'll win it back next round I keep going, otherwise I'll have lost for nothing I check whether the others keep playing

6. Your catchphrase? “I knew it” “It'll be fine” “It would be a shame to lose that” “Everybody does it”

7. A friend recommends a series. I watch it if it's like what I already enjoy I plan to finish it in one weekend I keep going even if I'm bored: I've already watched three episodes I watch it if it's in the top 10

Just for fun: no scientific value, but a real quiz is waiting for you right after.

Other tests

The 4 possible profiles

Confirmation bias — You mostly remember what proves you right — like everyone, only a little more. Antidote: look for a genuine counter-argument before concluding.
Optimism bias — For you, everything will be fine… and faster than planned. It's your strength and your trap: add 50% to your deadlines and you'll be right on time.
Loss aversion — Losing €10 hurts you more than winning €10 pleases you: Kahneman and Tversky measured it. Antidote: ask yourself “if I started from scratch, what would I choose?”.
The bandwagon effect — If everybody's going, it must be good… right? Antidote: ask yourself whether you'd make the same choice without seeing the crowd.

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