B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
68
68 -- system usability scale above average threshold for System Usability Scale (SUS) (2026)
A System Usability Scale (SUS) score above 68 is considered above average.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
68
Unit
Score
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
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
John Brooke
Primary
Tier B
https://announcekit.app/blog/user-experience-testing-how-why/ ↗
Source Article
User Experience Testing: How & Why · AnnounceKit
Original Research
John Brooke
· Original study ↗
Methodology
Benchmark threshold for the standardized 10-question SUS instrument developed by John Brooke in 1986
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
System Usability Scale (SUS): 68 system usability scale above average threshold. Source: John Brooke (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/sus-score-68-above-average
HTML Embed
<blockquote cite="https://lighthousedata.io/data/sus-score-68-above-average" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>68</strong> -- system usability scale above average threshold for System Usability Scale (SUS)<br><small>Source: John Brooke (2026) · <a href="https://lighthousedata.io/data/sus-score-68-above-average" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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