28 Biases

Time Psychology Biases.

How users perceive time, deadlines, and attention allocation.

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Decision Fatigue

Making a lot of decisions lowers users' ability to make rational ones

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Loss Aversion

People prefer to avoid losses more than earning equivalent gains

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Parkinson’s Law

The time required to complete a task will take as much time as allowed

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Discoverability

The ease with which users can discover your features

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Labor Illusion

People value things more when they see the work behind them

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Observer-Expectancy Effect

When researchers' biases influence the participants of an experiment

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Backfire Effect

When people's convictions are challenged, their beliefs get stronger

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IKEA Effect

When user partially create something, they value it way more

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Barnum-Forer Effect

When you believe generic personality descriptions apply specifically to you.

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Law of the Instrument

If all you have is a hammer, everything looks like a nail

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Dunning-Kruger Effect

People tend to overestimate their skills when they don't know much

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Pareto Principle

Roughly 80% of the effects come from 20% of the causes

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Chronoception

People's perception of time is subjective

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Self-serving bias

People take credits for positive events and blame others if negative

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Affect Heuristic

People's current emotions cloud and influence their judgment

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Cashless Effect

People spend more when they can't actually see the money

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False Consensus Effect

People overestimate how much other people agree with them

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Second-Order Effect

The consequences of the consequences of actions

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Bandwagon Effect

Users tend to adopt beliefs in proportion of others who have already done so

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Sunk Cost Effect

Users are reluctant to pull out of something they're invested in

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Reactance

Users are less likely to adopt a behavior when they feel forced

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Hyperbolic Discounting

People tend to prioritize immediate benefits over bigger future gains

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Commitment & Consistency

Users tend to be consistent with their previous actions

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Investment Loops

When users invest themselves, they're more likely to come back

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Temptation Bundling

Hard tasks are less scary when coupled with something users desire

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Planning Fallacy

People tend to underestimate how much time a task will take

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Default Bias

Users tend not to change an established behavior

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Weber's Law

Users adapt better to small incremental changes

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28 Time Biases – Cognitive Bias Library