B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
1,100
1,100 -- study participants for TikTok recommendation algorithm study (2025)
The Washington Post study on TikTok's recommendation algorithm analyzed data from more than 1,100 volunteer participants.
- The source specifies 'more than 1,100 volunteers'
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
1,100
Unit
Count
Data Vintage
2025
Entity
Sample Size
1,100
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
30
Freshness
95
Source
The Washington Post
Primary
Tier A
https://mddcadservices.com/inside-tiktoks-algorithm-what-15-million-videos-can-teach-marketers-about… ↗
Source Article
Inside TikTok’s Algorithm: What 15 Million Videos Can Teach Marketers About Attention
If you’ve ever opened TikTok “just for a minute” and then looked up an hour later wondering what happened, you’re not alone. You felt it—the pull, the rhythm, the uncanny sense that the app knew exactly what you wanted next. From a technical standpoint, it’s impressive. From a human standpoint, it’s…
Original Research
The Washington Post
· Original study ↗
Methodology
Volunteers downloaded and shared their own TikTok data files
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
TikTok recommendation algorithm study: 1,100 study participants. Source: The Washington Post (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/tiktok-study-volunteers
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<blockquote cite="https://lighthousedata.io/data/tiktok-study-volunteers" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>1,100</strong> -- study participants for TikTok recommendation algorithm study<br><small>Source: The Washington Post (2025) · <a href="https://lighthousedata.io/data/tiktok-study-volunteers" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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