MOUHADJER Halima2026-02-042026-02-042026-02-04https://dspace.univ-tlemcen.dz/handle/112/25667This study explores the use of ChatGPT in improving students’ writing skills, specifically among second-year English students at Tlemcen University. Using a mixed-methods case study approach, questionnaires, interviews, and a writing test, the study found that students generally perceive ChatGPT positively for its support in grammar, vocabulary, and organisation. However, concerns were raised about over-reliance and plagiarism. Teachers acknowledge its usefulness as a supplementary tool but emphasise the need to uphold academic integrity and critical thinking. Essay analysis confirmed that ChatGPT, when used moderately, enhances writing quality while preserving student voice.enWritingChatGPTMixed MethodsGrammarImproveThesis