Psychological reactance

People push back when they feel their freedom to choose is being taken away.

Where it applies

Three of the eight page areas.

How to use it

Three ways to use it, and two to avoid.

  • Offer guest checkout.
  • Give a plain “No thanks” option.
  • Make dismissal easy, with a close button that is not hidden.
  • Avoid: pop-ups that interrupt before the shopper has seen anything.
  • Avoid: forced account creation, guilt-worded decline buttons and hidden close buttons.
What the research found

Aggressive dark patterns caused anger, but mild ones did not.

Mild dark patterns caused no sign of anger, yet more than doubled sign-ups.

Rains' meta-analysis (20 studies, 4,942 people) supported reactance as a mix of anger and counter-arguing. In an online experiment, Luguri and Strahilevitz found aggressive dark patterns caused anger, while mild ones more than doubled sign-ups with no sign of anger. In a student study, forced pop-up ads felt intrusive, which led to irritation and avoidance. In display advertising, Goldfarb and Tucker found ads that were both targeted and obtrusive lowered purchase intent.

Key research

Five sources, each checked.

Last reviewed

Before you use it · UK law

Design that pressures or misleads shoppers can be an unfair commercial practice under the DMCC Act 2024, which the CMA has enforced directly since 6 April 2025 with penalties of up to 10% of turnover. The CMA's 2022 online choice architecture paper describes the practices it considers harmful.

This is simply a pointer to check, not legal advice. Seek legal advice before you put this principle into action.