Rhetorical Appeals
Logos: Data and Evidence
Support arguments with concrete statistics, research findings, and measurable facts.
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What it is
A rhetorical appeal that uses factual evidence, statistics, and logical proof to support arguments. Effective logos includes specific numbers, credible sources, and clear methodology to build rational conviction.
Before & after
Before
“Studies show this works better.”
After
“A/B testing with 50,000 users showed the new design increased conversions by 23% with 99% statistical confidence.”
When you’ll use it
Business cases and ROI justifications
Performance reviews with quantified achievements
Research presentations and data analysis
Sales presentations requiring proof of value
Pro tip
Use specific numbers, sample sizes, and confidence levels when citing data.
Questions & answers
3 questionsLearn more
Practice this concept
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