THE EFFECTIVENESS OF USING VIDEO BLOGS (VLOGS) TO IMPROVE SENIOR HIGH SCHOOL STUDENTS' SPEAKING ABILITY

This study aimed to examine the effectiveness of utilizing video blogs (vlogs) as a means to enhance the speaking ability of senior high school students. Employing a quantitative approach with a quasi-experimental design, the research involved two classes comprising 37 students each. The participants were assigned randomly to either the experimental group, which received the vlog treatment, or the control group, which did not. Both groups underwent pre-test and post-test assessments to evaluate their speaking ability. The findings from the paired sample t-test demonstrated a significant improvement in the speaking ability of the experimental group (p < .05), indicating the positive impact of vlogs. Furthermore, effect size analysis indicated a substantial effect of vlogs on enhancing students' speaking skills, with an effect size of 0.37. In conclusion, this research provides support for the use of vlogs as an effective tool for improving the speaking ability of senior high school students.