---

name: conversion-psychology description: Use when writing copy, designing CTAs, framing prices, adding trust signals, or reviewing any customer-facing page for persuasion effectiveness. Covers buying psychology, cognitive biases, and ethical urgency for e-commerce.

Conversion Psychology

Overview

People buy on emotion and justify with logic. This skill covers WHY people buy — the psychological principles, cognitive biases, and emotional triggers that turn browsers into buyers. It does NOT cover what to build (see ecommerce-growth), how AI finds you (see ai-search-optimizer), or how to validate a tactic with a controlled experiment (see ecommerce-cro-experimentation).

Cognitive Load Budget

Max 3-4 persuasion elements per page section. Applying every principle at once creates an infomercial. Pick the highest-impact tactics for each context.

Top 5 Essentials (If You Do Nothing Else)

1. Show social proof above the fold — reviews, star rating, or customer count
2. Frame price with monthly payment — "From £34/mo with Klarna" next to full price
3. One clear CTA per section — competing actions cause decision paralysis
4. Address the #1 fear on the page — spec confusion on product pages, security at checkout
5. Real urgency only — stock levels from WooCommerce, genuine sale end dates

---

Cialdini's 7 Principles

Principle	E-commerce Application
Reciprocity	Give first: free buying guide, spec-check tool, benchmark data
Commitment	Small yeses lead to big yeses: quiz → recommendation → add to cart
Social Proof	Reviews, star ratings, "Most Popular" badges, Trustpilot widget
Authority	Partner logos (Intel/NVIDIA/AMD), benchmark scores, "Est. 2020"
Liking	Local identity ("Built in Rotherham"), gaming culture tone, founder story
Scarcity	Real stock levels, genuine seasonal sales, limited GPU allocations
Unity	Shared identity: "South Yorkshire gamers", community language

---

Cognitive Biases

Anchoring

First number seen becomes the reference. Show higher price first.

• £1,299 £1,099 (crossed-out anchor)
• "Components worth £1,450 separately — yours for £1,099"

Loss Aversion

Pain of losing is 2x stronger than pleasure of gaining.

• "Your saved build expires in 48 hours"
• "Without 32GB RAM, expect stuttering in Cyberpunk 2077"

Decoy Effect

If 3+ products exist in a category, position the target as best value:

• Value £699 — functional | Most Popular £999 — best value (highlighted) | Premium £1,499 — aspirational anchor

Choice Overload

Max 3-5 options per category. Use quiz to narrow. Default selections in configurators.

Bandwagon Effect

"Most Popular" badges, real purchase counts from WooCommerce order data. Never use fabricated numbers.

---

Trust Architecture (4 Layers)

Layer	Elements
Authority	Partner logos, certifications, years in business
Evidence	Trustpilot widget, Google reviews, customer photos, benchmarks
Assurance	2-year warranty, 14-day returns, lifetime tech support
Transparency	Physical address in footer, phone in header, build process photos

Key insight: Mixed ratings (4.2-4.7) convert better than perfect 5.0 — they appear authentic. Respond professionally to negative reviews.

---

Purchase Anxiety (£500-£1,500 PCs)

Fear	On-Page Solution
"Is this the right spec?"	"Plays Fortnite at 144fps on High" — translate specs to performance
"Will it work?"	"Every PC tested 24 hours before shipping"
"What if it breaks?"	Warranty + support info on every product page, not hidden in FAQ
"Is this site legit?"	Trustpilot, address, phone number, SSL badge
"Can I afford it?"	Klarna monthly framing prominent next to full price
"Am I getting ripped off?"	Component-level value breakdown
"Will it arrive safely?"	"Foam-packed in custom PC packaging", delivery tracking

---

Price Psychology

Tactic	Example
Charm pricing	£999 not £1,000 (left-digit effect)
Monthly framing	"From £34/mo" prominent, full price secondary
Anchor pricing	£1,299 £1,099
Component value	"Parts worth £1,450 separately"
Bundle pricing	"PC + Monitor: Save £150"
Free shipping threshold	Set 15-25% above AOV to drive add-ons

---

Ethical Urgency

Ethical	Dark Pattern (Never Do)
Real stock from WooCommerce inventory	Hard-coded "Only 2 left!"
Genuine sale with real end date	Countdown timer that resets on refresh
Real viewer count (if tracked)	Fabricated "4 people viewing"
Limited GPU allocation (genuine)	Perpetual "SALE" that never ends

UK CMA actively investigates fake urgency. If not backed by real data, don't show it.

---

Quick Reference by Page

Product Page (max 4 persuasion elements above fold)

• Price with anchor + monthly framing
• Star rating + review count
• "Most Popular" / "Best Value" badge if applicable
• Stock level (only when genuinely < 10)

Checkout (trust-focused, not sales-focused)

• Trust badges near payment form (SSL, payment logos)
• Return policy reminder
• "Rated Excellent on Trustpilot" badge
• Order summary always visible

Quiz Results

• "Your Perfect Gaming PC" language (endowment/ownership)
• Performance framing: "Runs Fortnite at High, 144fps"
• One clear recommendation with alternatives secondary

---

Anti-Patterns

Don't	Do Instead
Fake countdown timers	Real sale dates with genuine end times
"Only 1 left!" when it's not true	Real WooCommerce inventory data
Popup immediately on page load	Exit-intent after 30+ seconds
Hiding shipping costs until checkout	Show delivery cost on product page
Perfect 5.0 star ratings	Allow and respond to negative reviews
"Buy Now" on £1,000+ items	"Add to Cart" — softer first step
Applying every principle at once	Pick 3-4 per section (cognitive load budget)

---

Red Flags for Review

1. No social proof visible above the fold
2. Raw price with no framing (anchor, monthly, or value comparison)
3. Fake or inflated metrics (regulatory risk + trust destruction)
4. Multiple competing CTAs of equal visual weight
5. No contact information visible (phone, address)