Conversion Optimization Cheat Sheet 2026

The 30 highest-yield Conversion Optimization facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is the CRO formula? → Leads Generated / Website Traffic x 100
2. Why is it important to run A/B tests for full business cycles (e.g., full weeks)? → To account for day-of-week behavioral patterns that could skew results
3. A mortgage site adds an interactive payment calculator. Engagement is high but form submissions don't increase. Which test should be run next? → A/B test calculator placement — move it directly above the lead form CTA
4. In CRO, what problem does 'Simpson's Paradox' create? → Aggregated data can show the opposite trend from what is true within individual segments
5. Because the advertisement featured a product they were already interested in, 48% of individuals clicked it. → False
6. Which of the following claims regarding CRO is accurate? → Improve user base
7. Why do high-converting landing pages typically remove the main navigation menu? → To eliminate distractions and keep visitors focused on the single conversion goal
8. In multivariate testing, what does 'interaction effect' mean? → Two elements perform better together than each does independently
9. Which of the following is an example of a 'post-purchase' conversion optimization opportunity? → Optimizing order confirmation page with upsells and referral prompts
10. What is 'social proof copy' in the context of conversion rate optimization? → Testimonials, reviews, case studies, and trust indicators embedded in conversion copy
11. A checkout page has a 68% abandonment rate. Which micro-conversion signal is most useful to diagnose the cause? → Form field interaction data (rage clicks, field drops)
12. What is a 'control' in an A/B test? → The original, unchanged version of the page
13. What is 'peeking' in A/B testing and why is it problematic? → Stopping a test early after seeing an early winner, which inflates false-positive rates
14. An evergreen landing page is what? → A landing page that stays live and fresh all year
15. What is the 'above-the-fold' copy rule in CRO? → The most critical value proposition and CTA should be visible without scrolling
16. In Bayesian A/B testing, what does 'probability to be best' represent? → The likelihood that a variant is the true winner based on observed data
17. Which statistical model is most appropriate when the conversion metric is binary (converted vs. not)? → Logistic regression
18. Which user research method is most effective for identifying friction in a multi-step onboarding flow for a complex B2B product? → Moderated usability testing with think-aloud protocol across the full flow
19. Which of the following is the most effective call-to-action (CTA) copy approach? → Get My Free Quote Now
20. What testing technique is most frequently utilized to increase conversions? → A/B testing
21. Send your visitors to: using your PPC Adwords campaign. → A targeted landing page
22. Which headline writing technique has been shown to most effectively increase click-through rates? → Incorporating specific numbers and data points (e.g., 'Increase Sales by 37%')
23. What does 'segment-level analysis' reveal that aggregate conversion rate metrics can hide? → Subgroups where a variant underperforms or outperforms, enabling targeted rollouts
24. Which metric best measures the health of a checkout funnel across all steps simultaneously? → Step-level micro-conversion rates combined into a funnel completion rate
25. What does a multi-armed bandit algorithm offer over classic A/B testing in conversion optimization? → Dynamically reallocates traffic to better-performing variants during the test
26. Which tool feature helps prevent 'flicker effect' in client-side A/B testing? → Anti-flicker snippet or async hiding technique that hides the page until the variant loads
27. What does CRO's full name mean? → Conversion Rate Optimization
28. Which copywriting framework is most commonly used for structuring persuasive conversion copy? → AIDA (Attention, Interest, Desire, Action)
29. Which metric should be the PRIMARY success indicator when testing an interactive product configurator on an e-commerce site? → Revenue per visitor (RPV)
30. Which of these best describes how conversion optimization works? → Making small incremental changes over time and seeing which change has the best results