Case study: anonymous letters and the limits of authorship analysis
Sample Instructor · 7 October 2026 · 20 minutes Sample data
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Summary
Two short texts from different genres are compared for style. This video shows why a small sample and a genre mismatch make authorship conclusions unreliable, and what data an expert should ask for. Sample content: the video has not been uploaded; both texts are invented.
Visualisations
- 1 Feb 2021
First letter received - 15 Feb 2021
Second and third letters received - 10 Mar 2021
Comparison emails supplied - 5 Aug 2021
Expert gives evidence
Quiz and CPD credit
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