Preselection

Definition

Default selection of an option on behalf of the consumer, requiring them to take additional action to deselect it and choose an alternative. Often co-occurs with social proof patterns (e.g., marked as "most frequently chosen").

Psychological mechanism

Default bias and inertia. Users tend to accept default settings to avoid additional cognitive and physical effort.

Consumer impact

• Consumer perception: Users perceive preselection mainly as an indication of the "most frequently chosen option" (32%) or "facilitating the choice" (28%). This shows that the manipulative goal is effectively masked.
• Measured impact: High. 44% of surveyed consumers chose the option that was selected by default, demonstrating high effectiveness in steering decisions.
• Vulnerable demographics: Younger people (18-24 years old) notice preselection more often, but simultaneously accept it more frequently.

Detection Signals

• On-page evidence: By default, a more expensive delivery option, a pricier product variant, a newsletter subscription, or an additional service is checked.

Evidence (Code examples)

<input type="radio" name="delivery" checked="checked"> Service - delivery with carry-in

<input type="radio" checked> Blue Block


<div is-selected>...</div>


const donation_slider_default_value = $form.is('.js-zero-donation') ? 0 : 15;

Regulatory Angle

Verification of material information. Enforcing compliance with Consumer Rights

Directive regulations that prohibit default consent for additional payments.