The Influence of Academic Stress and Smartphone Addiction on Academic Procrastination Among Public Senior High School Students in Yogyakarta City

Abstract

This study aims to investigate the influence of: (1) academic stress on academic procrastination among high school students, (2) smartphone addiction on academic procrastination among high school students, and (3) the combined effect of academic stress and smartphone addiction on academic procrastination. This research employed a quantitative correlational approach. A total of 404 high school students in yogyakarta city were selected using a proportionate stratified random sampling technique from a population of 9,354 students. Data were collected using three scales: academic stress, smartphone addiction, and academic procrastination, all of which were validated by two expert reviewers and tested for reliability. Data analysis was conducted using multiple linear regression, preceded by assumption tests including normality, linearity, multicollinearity, and heteroscedasticity.The results revealed that: (1) academic stress (x₁) had a significant influence on academic procrastination (y), with a negative direction. This means that the higher the level of academic stress experienced by students, the lower their tendency to procrastinate; (2) smartphone addiction (x₂) had a positive and significant effect on academic procrastination (y). The more addicted students were to smartphones, the higher their tendency to delay academic tasks; and (3) simultaneously, both independent variables—academic stress and smartphone addiction—significantly contributed to academic procrastination. Although the direction of influence differed, the regression analysis showed that the combination of both variables could explain the variability in academic procrastination behavior among high school students.Keywords: Academic Stress, Smartphone Addiction, Academic Procrastination