Confirmation Bias
Looking For Proof You Already Like
Brain Shortcuts that Tilt Judgment
A person decides a diet plan works, then saves every success story they see and ignores careful studies that show mixed results.
Learn this bugCognitive Biases
Cognitive biases are patterns that tilt judgment. They can make us notice friendly evidence and skip warning signs.
When you know the tilt, you can slow down and check what facts you are skipping.
17 lesson pages and 5 comparison links currently live in this section.
Biases tilt judgment.
Heuristics are quick rules of thumb that may or may not hurt.
Distortions often show up in self-talk and emotion.
Confirmation Bias
Brain Shortcuts that Tilt Judgment
A person decides a diet plan works, then saves every success story they see and ignores careful studies that show mixed results.
Learn this bugAnchoring Bias
Brain Shortcuts that Tilt Judgment
A store marks a jacket at a very high original price and then shows a sale price. The sale feels great because the first number still fra...
Learn this bugLoss Aversion
Brain Shortcuts that Tilt Judgment
A shopper buys something they do not need because letting the coupon expire feels like losing money.
Learn this bugDunning-Kruger Effect
Brain Shortcuts that Tilt Judgment
After one short tutorial, a student is sure they now fully understand the topic and do not need more practice.
Learn this bugSurvivorship Bias
Brain Shortcuts that Tilt Judgment
A team copies advice from famous startup winners without looking at how many failed companies used the same approach and disappeared.
Learn this bugStatus Quo Bias
Brain Shortcuts that Tilt Judgment
A team keeps using a clunky system because switching feels risky, even though the old system causes regular problems.
Learn this bugSelf-Serving Bias
Brain Shortcuts that Tilt Judgment
A student gets an A and says it proves they are brilliant, then gets a low score later and says the test was unfair.
Learn this bugOptimism Bias
Brain Shortcuts that Tilt Judgment
A team assumes the rollout will go smoothly for them even though similar rollouts almost always hit delays and surprises.
Learn this bugIn-Group Bias
Brain Shortcuts that Tilt Judgment
A student excuses rude behavior from their own club as stress, but calls the same behavior from another club proof of bad character.
Learn this bugNegativity Bias
Brain Shortcuts that Tilt Judgment
A speaker gets strong feedback from most of the room but spends the whole day replaying one harsh remark.
Learn this bugProjection Bias
Brain Shortcuts that Tilt Judgment
A manager wants a fast answer and assumes the whole team also prefers speed, even though several people need time to think.
Learn this bugIllusory Correlation
Brain Shortcuts that Tilt Judgment
A team notices two dramatic failures happened after a process change and starts treating the change like the cause, even though the broad...
Learn this bugMoral Licensing
Brain Shortcuts that Tilt Judgment
Someone eats one healthy meal and then treats it as permission to ignore the rest of the day's choices.
Learn this bugJust-World Hypothesis
Brain Shortcuts that Tilt Judgment
After someone experiences a setback, others quickly assume they must have made poor choices instead of asking what unfair conditions were...
Learn this bugFalse Consensus Effect
Brain Shortcuts that Tilt Judgment
A student assumes nearly everyone in class shares their opinion because it feels so reasonable from inside their own friend group.
Learn this bugProjection Bias
Brain Shortcuts that Tilt Judgment
A manager wants a fast answer and assumes the whole team also prefers speed, even though several people need time to think.
Learn this bugJust-World Hypothesis
Brain Shortcuts that Tilt Judgment
After someone experiences a setback, others quickly assume they must have made poor choices instead of asking what unfair conditions were...
Learn this bugOptimism Bias
Brain Shortcuts that Tilt Judgment
A team assumes the rollout will go smoothly for them even though similar rollouts almost always hit delays and surprises.
Learn this bugDunning-Kruger Effect
Brain Shortcuts that Tilt Judgment
After one short tutorial, a student is sure they now fully understand the topic and do not need more practice.
Learn this bugIllusory Correlation
Brain Shortcuts that Tilt Judgment
A team notices two dramatic failures happened after a process change and starts treating the change like the cause, even though the broad...
Learn this bugConfirmation Bias
Brain Shortcuts that Tilt Judgment
A person decides a diet plan works, then saves every success story they see and ignores careful studies that show mixed results.
Learn this bugLoss Aversion
Brain Shortcuts that Tilt Judgment
A shopper buys something they do not need because letting the coupon expire feels like losing money.
Learn this bugFalse Consensus Effect
Brain Shortcuts that Tilt Judgment
A student assumes nearly everyone in class shares their opinion because it feels so reasonable from inside their own friend group.
Learn this bugIn-Group Bias
Brain Shortcuts that Tilt Judgment
A student excuses rude behavior from their own club as stress, but calls the same behavior from another club proof of bad character.
Learn this bugSelf-Serving Bias
Brain Shortcuts that Tilt Judgment
A student gets an A and says it proves they are brilliant, then gets a low score later and says the test was unfair.
Learn this bugMoral Licensing
Brain Shortcuts that Tilt Judgment
Someone eats one healthy meal and then treats it as permission to ignore the rest of the day's choices.
Learn this bugSurvivorship Bias
Brain Shortcuts that Tilt Judgment
A team copies advice from famous startup winners without looking at how many failed companies used the same approach and disappeared.
Learn this bugStatus Quo Bias
Brain Shortcuts that Tilt Judgment
A team keeps using a clunky system because switching feels risky, even though the old system causes regular problems.
Learn this bugAnchoring Bias
Brain Shortcuts that Tilt Judgment
A store marks a jacket at a very high original price and then shows a sale price. The sale feels great because the first number still fra...
Learn this bugRecency Bias
Brain Shortcuts that Tilt Judgment
After one rough meeting, a manager decides the whole project is going off the rails even though the broader trend is stable.
Learn this bugNegativity Bias
Brain Shortcuts that Tilt Judgment
A speaker gets strong feedback from most of the room but spends the whole day replaying one harsh remark.
Learn this bugFraming Effect
Brain Shortcuts that Tilt Judgment
A snack labeled “90 percent fat free” feels better than one labeled “contains 10 percent fat,” even though the facts match.
Learn this bugYou only notice proof for the story you already like.
First numbers or first impressions stick too hard.
New evidence changes less than it should.
Looking For Proof You Already Like — Confirmation Bias
Stuck On The First Number — Anchoring Bias
The Wording Changes The Choice — Framing Effect
Knowing A Little Can Feel Like Knowing A Lot — Dunning-Kruger Effect
Only Seeing The Winners Distorts The Lesson — Survivorship Bias
Sticking With The Current Setup Because It Feels Safer — Status Quo Bias
The Negative Part Lands Harder And Stays Longer — Negativity Bias
More People Agree With Me Than Really Do — False Consensus Effect
Someone collects every clue for their idea and explains away the clues against it.
Use a short quiz or drill to check whether you can tell this category apart from nearby thinking traps.