Better-Than-Average Effect
Also known as: illusory superiority, overplacement, Lake Wobegon effect
Most people rate themselves above average on everyday abilities — driving, honesty, judging arguments — which is statistically impossible for everyone at once.
Examples
Ask a room of drivers to raise a hand if they’re better than the average driver, and most hands go up. Someone must be wrong: by definition, roughly half of any group sits below its median.
The pattern repeats wherever people self-assess common abilities — safer than the average driver, fairer than the average colleague, less gullible than the average voter. One of the largest bodies of evidence in psychology, spanning hundreds of samples and nearly a million participants, confirms the tilt is strong and general.
It has a signature move in arguments:
Post: “People believe whatever their feed tells them. Sheep.” Reply: “What does your feed tell you?” Post: “I actually think critically.”
Everyone in that thread believes they’re the exception. That’s the effect talking.
Why it happens
For most everyday traits there’s no scoreboard. “Good driver” is vague enough that everyone can define it as the thing they do well — cautious drivers count caution, quick ones count skill — and each of us grades ourselves on our own rubric, with the most flattering examples closest to hand. Add that we experience our own good intentions but only other people’s visible behavior, and “above average” becomes the default self-portrait.
Two honest boundaries: the effect is strongest for common, ambiguous abilities; for genuinely hard skills (juggling, formal logic), people often rate themselves below average. And it describes the crowd, not every individual — some people really are above average. Just fewer than believe it.
How to counter it
- Demand a measure. Before rating yourself, define the yardstick — then find data: actual record, test results, others’ honest ratings.
- Ask “compared to whom, on what?” Vague superiority dissolves under specific comparison.
- Let the base rate discipline you: if 80% of people claim above-average judgment, your claim of it is probably worth the same discount you’d apply to theirs.
- Don’t weaponize it — “you just think you’re smarter than everyone” isn’t a rebuttal to someone’s argument; address the argument.