Four categories of English writing submissions—letters, stories, articles, and essays—collected from non-native students via the Write & Improve platform. Each submission is manually annotated with a CEFR level to indicate the writer's proficiency.
Use Cases
- Train automated proficiency classification models using the assigned CEFR level labels.
- Develop grammatical error detection algorithms by comparing student submissions against the manual annotations provided by experts.
- Analyze stylistic variations in learner English across different prompt types like stories and articles.
Strengths
- Includes four distinct writing genres: letters, stories, articles, and essays.
- Features manual proficiency annotations based on the Common European Framework of Reference for Languages (CEFR).
- Contains longitudinal data from non-native English students collected globally since 2014.