B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
28%
28% -- email plus direct mail conversion rate lift for Nonprofits and charity organizations combining email marketing with direct mail (vs. direct mail alone) (2021)
Nonprofits and charity organizations that combined email marketing with direct mail saw a 28% higher conversion rate than those relying on direct mail alone.
- Original research/study source not specified in text
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
28%
Unit
Percentage
Data Vintage
2021
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
growthcollective.com
Primary
Tier C
https://www.growthcollective.com/guides/how-to-hire-top-freelancers-for-email-marketing ↗
Source Article
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Luca Bares
Webflow Expert
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Richard Parra
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Hudaina Baig
…
Original Research
growthcollective.com
· Original study ↗
Methodology
Relative conversion-rate lift over direct-mail-only baseline for nonprofits combining email with direct mail; original study not attributed in source
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Nonprofits and charity organizations combining email marketing with direct mail (vs. direct mail alone): 28% email plus direct mail conversion rate lift. Source: growthcollective.com (2021). Via Lighthouse Intelligence -- https://lighthousedata.io/data/nonprofit-email-direct-mail-conversion-lift-28
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<blockquote cite="https://lighthousedata.io/data/nonprofit-email-direct-mail-conversion-lift-28" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>28%</strong> -- email plus direct mail conversion rate lift for Nonprofits and charity organizations combining email marketing with direct mail (vs. direct mail alone)<br><small>Source: growthcollective.com (2021) · <a href="https://lighthousedata.io/data/nonprofit-email-direct-mail-conversion-lift-28" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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