Abstract
Background: As Thailand has been dealing with the outbreak of novel coronavirus disease 2019 for 2 years, Thai high school students have a large number of tasks that are influenced by switching to an online class. They are more likely to experience varied levels of stress as a result of their multitasking skills.

Objective: The Yerkes-Dodson Law and Performance paradigms were used in this study to indicate the level of stress caused by multitasking skills among students in Chiang Rai Municipality School 6. The stress level is divided into four stages: underload, optimum stress, overload, and extreme stress.

Materials and Methods: This study consists of 100 Chiang Rai municipality school six students in grades 10–12 via an online survey consisting of 12 questionnaires about multitasking skills representing four stress levels. The student’s perspective on the influence of four types of stress level was shown as mean scores from 5-Linkert scaling responses, ranging from strong disagreement to strong agreement, based on data analysis using descriptive and inferential statistics. Finally, a correlation test was performed to determine how multitasking skills affect students’ stress levels.

Results: Despite the fact that the optimum stress stage seems to emerge in the majority of students, the results show that the majority of students were determined in an underload stage with a mean of 4.15. According to the correlational test, extreme stress and optimum stress (r = 0.79), as well as overload and optimum stress (r = 0.66), are highly statistically
significant.

Conclusion: The most common stress among students is under load, optimum stress, nonetheless, and other levels of stress (overload and extreme stress) were found to be significantly similar to optimum stress. This data suggests that teachers should work together to offer multiple subjects for pupils at the same time. There will be varied amounts of stress because each studentÂ’s ability to utilize multitasking abilities varies. Which in some people is in extreme stress that may lead to physical health problems.

Key words: Multitasking Skills; Stress Levels; High School Students