Investigating the Efficacy of Project-Based Learning in Enhancing English Writing Skills: A Comprehensive Model

This study aims to examine the effectiveness of project-based learning (PjBL) in improving undergraduate students' English writing skills.Utilizing a mixedmethods approach, the research design incorporates quantitative regression analysis and qualitative interviews to provide a comprehensive understanding of the impact of PjBL on writing performance.The study addresses four key research questions: the effects of four contributing factors to PjBL's effectiveness, a comparative analysis of treatment and control groups, the identification of factors for a successful PjBL model, and the development of a comprehensive model based on the findings.The Ordinary Least Square regression analysis of 130 students engaged in PjBL activities revealed the influence of various factors on writing enhancement.A quasi-experiment was conducted to compare the writing performance of a treatment group, which participated in PjBL activities, with a control group.Additionally, interviews with two English instructors provided insights into the elements that foster a successful PjBL model for English writing skills development.The findings were integrated to form a multifaceted model that underscores the importance of PjBL in the educational landscape.This study contributes to the existing literature by providing empirical evidence of PjBL's efficacy and offering a practical model for educators seeking to improve English writing skills among undergraduates.The implications for classroom instruction and future research directions are discussed.