Cognitive Biases

CogBias

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

Patterns

Five recurring ways judgment slips

The pattern pages are a second axis of comparison. They are especially helpful when several different biases share the same psychological shape even across different categories.

Association

The mind overweights resemblance, vividness, proximity, or intuitive linkage.

83 biases

What feels connected here mainly because it is salient, familiar, or easy to pair mentally?

Baseline

Judgment is pulled by the wrong starting point, default frame, or prior expectation.

36 biases

What baseline, anchor, or prior frame is steering this judgment before the evidence is even assessed?

Inertia

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

17 biases

What is staying in place mainly because movement is costly, awkward, or identity-threatening?

Outcome

The result of an event bends how the process, evidence, memory, or explanation is interpreted afterward.

62 biases

How is the known result warping the way the earlier judgment or evidence now feels?

Self-Perspective

The bias intensifies when ego, identity, ownership, or asymmetry between self and others enters the picture.

45 biases

What changes in this judgment when the person involved is me, my group, or someone I already identify with?