Cognitive Biases

CogBias

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

Teaching Kit

Product Choice-Architecture Audit

A product and UX kit for testing whether defaults, decoys, metrics, and automation are helping users choose or quietly manufacturing preference.

60-90 minutes Biases In Product And UX 6 biases
Run assessment mode

Audience

Product managers, designers, researchers, founders, growth teams, and policy designers.

Objectives

  • Make the choice architecture visible as part of the decision environment.
  • Test whether user preference survives without defaults, decoys, anchors, or proxy metrics.
  • Turn ethical UX concerns into concrete redesign experiments.

Linked study tools

These are the supporting pieces to open before or after the live activity.

Biases In Product And UX

A hub for product decisions, interfaces, pricing, defaults, metrics, and AI-assisted workflows where choice architecture can quietly manufacture preference.

12 biases 3 paths 3 prompts

Is the interface helping users express a preference, or shaping the preference before they notice?

Product managers, designers, researchers, founders, growth teams, policy designers, and anyone building decision environments.

Comparison Traps And Choice Architecture

A path for the biases that reshape preference by changing the frame, the menu, the proxy, or the amount of visible motion in the decision process.

7 biases Teaching And Team Use 55 min

What in the frame or comparison structure is deciding the choice before the merits are cleanly weighed?

Best for product design, pricing, purchasing, strategy, and anyone building or choosing among options.

Loss, Ownership, And Omission

A decision path for the biases that make change feel costly, surrender feel painful, and inaction feel cleaner than it is.

7 biases Applied 45 min

How do defaults, ownership, and downside language quietly decide the choice before the merits are weighed?

Best for managers, household decisions, policy tradeoffs, pricing, and resource allocation.

Before You Let The Menu Decide

A choice-architecture check for decisions that may be getting bent by the comparison set, the proxy being used, or the pressure to act visibly.

Applied Before a framed comparison 4 min

Question: Am I choosing the best option, or the option the current frame is making easiest to endorse?

  • Rewrite the target question so the real decision criterion is explicit.
  • Compare the core options pairwise without the decoy, preselection, or prestige cue if possible.
  • Ask whether action is being preferred because it is action rather than because it is fit.
  • Check what your judgment would be before the system recommendation or crowd signal is shown.

Before You Treat The Default As Neutral

A choice-architecture check for the moments when the preselected option starts feeling invisible, safe, or morally cleaner.

Applied Before accepting the current path 3 min

Question: Is the default genuinely best, or just easiest to leave in place?

  • Rewrite the default as one explicit option on the list.
  • Name the friction or emotional cost attached to changing it.
  • Compare the cost of acting with the cost of preserving the current path.
  • Ask what you would choose if no option had been preselected.

Default Effect vs Status Quo Bias

The default effect is a choice-architecture pull toward the preselected option; status quo bias is a broader preference for leaving things as they are.

Quick rule: Ask whether people are staying because the option was preselected or because change itself feels costly, risky, or abnormal.

Loss Aversion vs Sunk Cost Effect

Loss aversion overweights losses relative to gains; the sunk cost effect keeps investment going because prior costs feel like they must be redeemed.

Quick rule: Ask whether the pain comes from possible future loss or from refusing to accept an unrecoverable past cost.

Bias pages in this kit

Use these entries as the reference layer after the activity surfaces the problem.

Default effect

The tendency to favor the preselected or default option simply because it is already positioned as the path of least resistance.

DecisionAssociationChoice architecturePersonal decisions

Framing effect

The tendency for the same underlying information to produce different judgments depending on how the options or outcomes are described.

DecisionAssociationMedia & politicsPersonal decisions

Decoy effect

Where preferences for either option A or B change in favor of option B when option C is presented, which is completely dominated by option B (inferior in all respects) and partially dominated by option A

DecisionBaseline

Anchoring effect

The tendency for the first salient number, frame, or option to pull later estimates toward itself even when it is arbitrary or weakly relevant.

EstimationBaselineForecasting & planningPersonal decisions

Automation bias

The tendency to depend excessively on automated systems which can lead to erroneous automated information overriding correct decisions

DecisionAssociation

Surrogation

Losing sight of the strategic construct that a measure is intended to represent, and subsequently acting as though the measure is the construct of interest

Causal AttributionOutcome