B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
22.1%
22.1% -- ab test negative result rate for e-commerce brands (2026)
In a study of over 90 e-commerce brands, 22.1% of A/B tests made performance worse.
Lighthouse Research Team
Last verified:
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Evidence graded
Value
22.1%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
90
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Source Article
Best A/B Testing Software 2026: 13 Tools Compared | Kirro
Kirro, VWO, and Optimizely lead the pack for most teams. But the right A/B testing software depends on your traffic, budget, and willingness to tinker. What works for a 200-person company with a dedicated testing team is overkill for a solo founder with 30 minutes between meetings.
We’ve tested, use…
Methodology
Same study of 90+ e-commerce brands
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
e-commerce brands: 22.1% ab test negative result rate. Source: (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ab-test-negative-rate-22-1
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<blockquote cite="https://lighthousedata.io/data/ab-test-negative-rate-22-1" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>22.1%</strong> -- ab test negative result rate for e-commerce brands<br><small>Source: (2026) · <a href="https://lighthousedata.io/data/ab-test-negative-rate-22-1" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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