Processing Difficulty Effect
Information that is harder to process is seen as less credible, appealing, or trustworthy.
Why it works
Based on processing fluency research (Schwarz, 2004), cognitive ease signals truth and safety to the brain. When information is difficult to process, it triggers skepticism and negative affect. People mistake processing difficulty for content quality, leading them to avoid complex or unclear messaging even when the underlying value is high (Alter & Oppenheimer, 2009).
Application examples
Email Campaigns
Save 25% - Simple as that
Three steps: Click, Choose, Done
Product Pages
Works instantly • No setup required • Just plug and play
Simple pricing: $29/month for everything
Landing Pages
The simple solution to complex problems
No contracts • No hidden fees • No complications
Social Media Ads
Finally, software that makes sense
Easy enough for anyone, powerful enough for experts
Push Notifications
One tap to complete your task
Implementation tips
- Use clear, simple language and avoid jargon or complex terminology
- A/B test simple vs detailed product descriptions - simple often wins
- Implement clean, uncluttered design with plenty of white space
- Break complex information into digestible chunks with clear headings
- Use familiar fonts, standard layouts, and conventional design patterns
- Test readability scores and optimize for 8th-grade reading level or below
eCommerce fit
High Critical for e-commerce success where customers have limited attention and tolerance for complexity. Simple, clear messaging significantly improves conversion rates and reduces bounce rates.
Caution
Don't oversimplify to the point of appearing simplistic or hiding important information. Balance clarity with necessary detail for informed decisions. Some audiences (technical professionals) may interpret extreme simplification as lack of sophistication. Test with your specific audience to find optimal complexity level.
Best for products
- complex-software
- financial-products
- technical-services
- healthcare-products
- b2b-solutions
Keywords
- simple
- easy
- clear
- straightforward
- no-hassle
- effortless