Investigating the Role of the Group Investigation Model in Improving Interpersonal Skills among ESL Learners in Pakistan

Abstract

This study examined the effectiveness of the Group Investigation learning model in enhancing interpersonal skills among Pakistani ESL university students. A sample of 116 students was selected through simple random sampling. The study adopted an experimental design using a pretest–posttest control group structure. Data were collected through direct observation of students’ interpersonal skills during classroom activities. The results indicated a statistically significant difference between the experimental and control groups, with the calculated t value exceeding the critical value (t = 2.272 > 1.980, p = .026). These findings demonstrate that the Group Investigation learning model significantly improves students’ interpersonal skills. Therefore, it is recommended that this collaborative instructional approach be incorporated into ESL classrooms at the university level in Pakistan to promote effective interpersonal competence.