Cognitive Biases

CogBias

A practical cognitive-bias site with clear definitions, learning paths, assessments, self-audits, and debiasing tools.

Pattern

Inertia

Beliefs, habits, or commitments resist updating even when better movement is available.

17 biases

Biases with this pattern

This is the cross-cutting layer that helps the site feel more like a real reference and less like a flat list.

Attentional bias

The tendency of perception to be affected by recurring thoughts

RecallInertia

Backfire effect

A tendency to react to disconfirming evidence by strengthening one's previous beliefs

Opinion ReportingInertia

Conservatism bias

The tendency to insufficiently revise one's belief when presented with new evidence

EstimationInertia

Continued influence effect

Misinformation continues to influence memory and reasoning about an event, despite the misinformation having been corrected. cf. misinformation effect, where the original memory is affected by incorrect information received later

RecallInertia

Doubling-back aversion

The tendency for people to avoid retracing their steps or restarting a task, even when doing so would clearly save time or effort, because it feels like undoing past progress rather than making future gains

DecisionInertia

End-of-history illusion

The age-independent belief that one will change less in the future than one has in the past

Opinion ReportingInertia

Endowment effect

The tendency to value something more highly once it is already owned, possessed, or treated as part of the current arrangement.

DecisionInertiaPersonal decisionsMarkets & valuation

Functional fixedness

A tendency limiting a person to using an object only in the way it is traditionally used

DecisionInertia

Mere exposure effect

The tendency to like, trust, or feel more comfortable with something simply because it has become familiar.

DecisionInertiaMedia & politicsPersonal decisions

Omission bias

The tendency to judge harmful inaction as more acceptable, or less blameworthy, than equally harmful action.

Opinion ReportingInertiaPersonal decisionsPublic policy

Plan continuation bias

Failure to recognize that the original plan of action is no longer appropriate for a changing situation or for a situation that is different from anticipated

DecisionInertia

Semmelweis reflex

The tendency to reject new evidence that contradicts a paradigm

DecisionInertia

Shared information bias

The tendency for group members to spend more time and energy discussing information that all members are already familiar with (i.e., shared information), and less time and energy discussing information that only some members are aware of (i.e., unshared information)

DecisionInertia

Status quo bias

The tendency to prefer the current option, default, or inherited arrangement simply because it is the current option, default, or inherited arrangement.

DecisionInertiaPersonal decisionsTeams & management

Sunk cost effect

The tendency to keep investing in a losing path because of what has already been spent, even when the forward-looking case has weakened.

DecisionInertiaPersonal decisionsTeams & management

Well travelled road effect

The tendency to underestimate the duration taken to traverse oft-travelled routes and overestimate the duration taken to traverse less familiar routes

DecisionInertia