Author(s): Sheena S. Diego, Adrian V. Protacio

Abstract: Integrating artificial intelligence (AI) in education offers significant potential to enhance writing competencies. This quantitative study investigated the effect of an AI-integrated instructional approach on the writing performance of Senior High School students at Liberty National High School, Tampakan, South Cotabato. The study measured improvements in students’ writing competencies in English, which focused on vocabulary, grammar, content development, and organization. A quasi-experimental single-group design was employed to assess the effects of an AI-integrated approach in writing. Statistical analyses indicated significant positive gains across all measured domains following the implementation of AI support. The results demonstrated that AI integration facilitated immediate grammar correction, expanded vocabulary use, and improved overall coherence and structural organization in students' written outputs. These findings provide empirical support for using AI technologies to enhance students' writing competencies in English. The study underscores the importance of strategically incorporating AI as a supplementary tool in writing approach to optimize learning outcomes while maintaining academic rigor.

Keywords: Artificial Intelligence (AI), Academic Writing, Writing Competencies, Senior High School Students, AI-Assisted Instruction, Quantitative Research.

Article Info: Received: 18 May 2025; Received in revised form: 15 Jun 2025; Accepted: 19 Jun 2025; Available online: 24 Jun 2025

DOI: 10.22161/ijels.103.97