B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
20%
20% -- idea generation increase for brainstorming groups encouraged to debate (2026)
Brainstorming groups encouraged to debate generated 20% more ideas than those not allowed to critique each other in a University of California study.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
20%
Unit
Percentage
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
University of California
Primary
Tier C
https://www.altiusdirectory.com/how-to-brainstorm-more-effectively/ ↗
Source Article
How To Brainstorm More Effectively
Original Research
University of California
· Original study ↗
Methodology
Study conducted by the University of California; no further methodology stated
Methodology documented
Segmentation
Industrymarketing
RoleAll marketers
Cite this stat
Plain Text
brainstorming groups encouraged to debate: 20% idea generation increase. Source: University of California (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/debate-brainstorming-idea-increase
HTML Embed
<blockquote cite="https://lighthousedata.io/data/debate-brainstorming-idea-increase" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>20%</strong> -- idea generation increase for brainstorming groups encouraged to debate<br><small>Source: University of California (2026) · <a href="https://lighthousedata.io/data/debate-brainstorming-idea-increase" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.