B
Evidence Grade B
Graded
under review
Safe to Cite
Recent
25%
25% -- purchase increase rate for McDonald's families (reciprocity study) (2025)
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
25%
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
Bob Cialdini (cited research)
Primary
Tier C
https://www.deciphr.ai/podcast/the-influence-expert-7-ways-to-get-people-to-do-what-you-want-even-wh… ↗
Source Article
The Influence Expert: 7 Ways to Get People to Do What You Want (Even When They Don't Want To)
Summary notes created by Deciphr AI
https://youtu.be/aO4RC70qU1U?feature=sharedAbstract
Summary Notes
- Asking for Advice vs. Opinion
- Influence vs. Manipulation
- Principle of Reciprocation
- Giving Value First
- Fear of Losing Resources
- Types of Reciprocation
- Obligation and Balance
- Timing a…
Original Research
Bob Cialdini (cited research)
· Original study ↗
Methodology
Study cited by Bob Cialdini on reciprocation principle; families given something first bought more
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
McDonald's families (reciprocity study): 25% purchase increase rate. Source: Bob Cialdini (cited research) (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/mcdonalds-reciprocity-food-purchase-increase
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<blockquote cite="https://lighthousedata.io/data/mcdonalds-reciprocity-food-purchase-increase" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- purchase increase rate for McDonald's families (reciprocity study)<br><small>Source: Bob Cialdini (cited research) (2025) · <a href="https://lighthousedata.io/data/mcdonalds-reciprocity-food-purchase-increase" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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