B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
20%
20% -- open rate improvement from ab testing for email marketing campaigns (2025)
A/B testing different subject lines can boost email open rates by up to 20%.
- Upper bound of up to 20%
- Secondary citation attributed to TechnologyAdvice
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
20%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
TechnologyAdvice
Primary
Tier C
https://outlead.io/blog/what-does-a-lead-generation-specialist-do ↗
Source Article
What a Lead Generation Specialist Does & Why You Need One | Outreach.io
Introduction
Nearly every business wants more leads, but few have a systematic process to generate them. This is where a lead generation specialist becomes one of the most valuable players on your team. With 91% of marketers citing lead generation as their top priority, the demand for experts who ca…
Original Research
TechnologyAdvice
· Original study ↗
Methodology
Attributed to TechnologyAdvice; upper bound of range
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
email marketing campaigns: 20% open rate improvement from ab testing. Source: TechnologyAdvice (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ab-testing-open-rate-boost-20
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<blockquote cite="https://lighthousedata.io/data/ab-testing-open-rate-boost-20" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>20%</strong> -- open rate improvement from ab testing for email marketing campaigns<br><small>Source: TechnologyAdvice (2025) · <a href="https://lighthousedata.io/data/ab-testing-open-rate-boost-20" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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