2020 Volume 8 Issue 3 Pages 191-206
The purpose of this study is to analyze time spent using SNS per week for university students, to clarify the substitute and complementary relationships among LINE/Twitter/Instagram/YouTube use, and to elucidate the effects of SNS use on academic performance. Data on LINE/Twitter/ Instagram/YouTube use time was collected from students' smartphone battery usage record (N=153), not by a self-reported survey. This study defined academic performance as a final exam score in a course, not a self-declared GPA adopted by many previous studies.
Results suggest that LINE and Instagram, and Twitter and YouTube have complementary relationships. Time spent using LINE, Twitter, and YouTube had a negative impact on academic performance, which means the more students use LINE / Twitter / YouTube, the worse academic performance they showed. These results are consistent with previous findings that suggest SNS use distracts attention, and reduces learning time, resulting in lower academic performance.