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Debias Spot your own cognitive biases · Android · Free

Effort Justification

We tend to attribute greater value to outcomes we expended effort to achieve.

The need to act fast Biased toward action

Effort justification is an idea and paradigm in social psychology stemming from Leon Festinger's theory of cognitive dissonance. People who go through a difficult initiation to join a group later report liking the group more than those who underwent an easy initiation. The effort to obtain something adds perceived value through the need to justify the cost — rather than recognizing the effort as a sunk cost.

Where it shows up

What it looks like in the wild.

Would you catch it?

Recognising a definition is not the same skill as spotting it.

Two scenarios from the app, with distractors drawn from the same family of biases — which is what makes them hard.

Scenario 1Which bias?

After fighting through a dense crowd to get a seat at a lecture, Maria thought the speaker's points were much more insightful than the same lecture she'd listened to online later.

Scenario 2Which bias?

After a long and expensive IVF process, Kate is convinced that her resulting pregnancy is more special and meaningful than pregnancies achieved without medical intervention.

100+ more scenarios for this bias alone. 18,869 across all 188 — plus a log of which biases are yours.
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Biases rarely arrive alone.

Understand more. Assume less.

188 biases, 18,869 scenarios, and a record of how you actually decide.

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