B
Evidence Grade B
Safe to Cite
Current
4
4 -- long term roi multiplier for Best ads measured by Kantar’s LINK testing (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
4
Unit
Multiple
Data Vintage
2026
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
75
Source Trust
95
Citation Chain
90
Independence
30
Methodology
45
Freshness
95
Source
Kantar
Primary
Tier B
https://www.kantar.com/north-america/Solutions/Creative ↗
Source Article
Creative Testing and Optimization
Creative Testing and Optimization
Build stronger campaigns and supercharge the impact of your media investments
You need to develop ads that capture attention, drive predisposition and deliver ROI across markets, media, formats, and channels.
LINK creative development, testing and optimization solut…
Original Research
Kantar
· Original study ↗
Methodology
Research carried out in partnership with WARC
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Best ads measured by Kantar’s LINK testing: 4 long term roi multiplier. Source: Kantar (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/kantar-link-testing-long-term-roi
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<blockquote cite="https://lighthousedata.io/data/kantar-link-testing-long-term-roi" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>4</strong> -- long term roi multiplier for Best ads measured by Kantar’s LINK testing<br><small>Source: Kantar (2026) · <a href="https://lighthousedata.io/data/kantar-link-testing-long-term-roi" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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