Original practice-data studies
Writing research you can inspect
We study submitted writing to understand response length, criterion profiles and patterns in stored practice estimates. Each report includes its evidence tables, methods, limitations and downloadable aggregate data.
October series: submissions from 22 August–5 October 2026. These are self-selected practice samples with AI estimates, not official examination results. Several reports analyze the same cohorts; their response counts must not be added together.
October 2026 studies
2 reports on this site-
5 October 2026 · 2,370 responses in scope
How repeat writers change writing-practice statistics: October 2026 study
In the cleaned recent corpus, the most prolific 10% of IELTS accounts contributed 41.6% of responses. Response-weighted and first-response-per-account summaries answer different questions.
Read the study and data -
5 October 2026 · 2,370 responses in scope
Writing-practice research methodology: October 2026 dataset and reporting rules
This series analyzes 2,370 recent practice responses from 1,383 accounts. It publishes aggregate tables with explicit duplicate handling, contributor limits and score-interpretation boundaries.
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Shared methods and related research
The series spans IELTS Writing Checker, Cambridge Writing Checker and ScoreQwik. Each report has one canonical publication page.
Earlier benchmark
The August publication describes a separate historical cohort. Its counts and cleaning rules differ from the October series; comparing the two does not establish learner improvement.
English Writing Benchmark 2026 — published 21 August 2026