ethics

The first number a person sees shapes every judgement that follows, even when it is obviously arbitrary.

BIAS·001Cognitive bias · Judgement

Losing something feels worse than gaining the same thing feels good, which shapes how people react to change.

BIAS·002Cognitive bias · Judgement

The same fact produces different decisions depending on whether it is expressed as a gain or a loss.

BIAS·003Cognitive bias · Judgement

Most people accept whatever is preselected, which makes defaults the most powerful control in an interface.

BIAS·004Cognitive bias · Judgement

People look to others' behaviour when deciding, especially under uncertainty.

PSY·006Psychology · Influence

People give disproportionate weight to a source that appears authoritative, including visual markers of authority.

BIAS·006Cognitive bias · Influence

People value things more once they own them, and more still once they have put work into them.

BIAS·007Cognitive bias · Judgement

Adding a deliberately inferior third option changes which of the original two people choose.

BIAS·012Cognitive bias · Judgement

Interfaces engineered to make users act against their own interest, now regulated in several jurisdictions.

PRIN·011Principle · Ethics

Past investment that cannot be recovered still drives decisions, in users and in product teams alike.

BIAS·014Cognitive bias · Judgement

Ask at the moment the permission is needed, say what it enables, and make declining survivable.

WRT·014UX writing · UX writing

A retention gauntlet kept subscribers for one more month and produced public complaints, regulatory attention and worse reactivation.

CASE·008Case study · Subscriptions

Whether the design serves the user's interest, including where that now overlaps with legal obligation.

CHK·010Checklist · Ethics