Impacts of education and perception on Vietnamese high school students' behaviors regarding plastic waste: the mediating role of attitude.

This study analyzed the impact of educational, perception, and attitudinal factors on the plastic waste behavior of high school students in Vietnam. A cross-sectional research design and questionnaire survey method were used to collect data from 573 high school students. All the statistical analyses and hypothesis tests were performed using SPSS 26 and AmoS 20 software. Research results show that perception does not directly affect students' behavior toward the plastic waste problem (B = 0.051, p = 0.201 > 0.05, CI = [- 0.027; 0.130]) but has an indirect impact through attitude mediation, with an impact coefficient of B = 0.107 (p = 0.016 < 0.05, CI = [0.042; 0.177]). Educational factors positively impact students' behavior toward plastic waste through both direct effects, with an impact coefficient of B = 0.546 (p = 0.00 < 0.05, CI = [0.473; 0.620], and indirect effects, mediated by attitude, with an impact coefficient of B = 0.017 (p = 0.007 < 0.05, CI = [0.003; 0.037]). These findings are new compared to previous studies, contributing to enriching theories related to behavior toward the plastic waste problem and bringing practical significance to Vietnam. The findings of this study provide the basis for proposing measures to improve plastic waste behaviors for Vietnamese high school students.

COVID-19 Fear, Sleep Quality, Anxiety and Depression: A Moderated Mediation Model.

The available literature demonstrates that COVID-19 fear (CV-19 F) may increase depressive symptoms in adolescents. However, few studies have explored the underlying mechanisms of this relationship. This study aimed to understand the role of anxiety and sleep quality in the association between CV-19 F and depression in Vietnamese adolescents. A sample of 685 adolescents, ages 15 to 19 (mean = 16.09, SD = 0.860), was recruited to participate in the study. The Pittsburgh Sleep Quality Index, the Depression Anxiety Stress Scales, and the Fear of COVID-19 Scale were completed by participants. Results indicated that the link between CV-19 F and depression was fully mediated by anxiety. Furthermore, this indirect relationship was moderated by sleep quality. Our findings provided new insights into the link between CV-19 F and depression as well as highlighted the potential value of reducing anxiety and improving sleep quality in the prevention of depression in adolescents with high levels of CV-19 F.

Facebook Addiction Partially Mediated the Association Between Stress Symptoms and Sleep Disturbance Among Facebook Users.

Stress symptoms, Facebook addiction, and sleep disturbances have important effects on the health of every individual. However, very few studies have examined the association between stress symptoms, Facebook addiction, and sleep disturbances. This study investigated the mediating effect of Facebook addiction on the association between stress symptoms and sleep disturbances among Facebook users in Vietnam. Three hundred fifty-four Facebook users in Vietnam have completed measures to assess symptoms of stress, levels of Facebook addiction, and sleep disturbances. In the sample, stress was positively associated with sleep disturbances and Facebook addiction partially mediated the association between stress and sleep disturbance (stress was positively associated with Facebook addiction and Facebook addiction was positively associated with sleep disturbances). Thus, our findings demonstrate that stressful individuals tend to be addicted to Facebook, which increase the risk of sleep disturbances. Therefore, interventions aimed at improving sleep quality for Facebook users should focus on reducing stress and reducing dependence on Facebook.

Academic stress and depression among vietnamese adolescents: a moderated mediation model of life satisfaction and resilience.

Academic stress is rising among high school students, especially in light of the Covid-19 pandemic, such as social distancing, long-term online learning, and lack of social support. Many studies have also shown that students with high levels of academic stress have a higher risk of depression. However, very few researchers are interested in studying life satisfaction as a moderate factor for the indirect relationship between academic stress and depression. This study investigated whether life satisfaction factors moderate the indirect effect of academic stress on the depressive disorder in Vietnam adolescents. Participants include 1336 Vietnamese adolescents. Participants completed the Educational Stress Scale for Adolescents, Connor-Davidson Resilience Scale, Satisfaction with Life Scale, and Beck Depression Inventory-II. Moderated mediation analyses were conducted using the PROCESS macro to investigate the relationship among variables. In the relationship between academic stress and depressive disorder in Vietnamese adolescents, resilience is partly mediated; life satisfaction significantly moderated the indirect effect of academic stress on depressive disorder. This study suggests that depressive disorders prevention and intervention practices for adolescents need to consider enhancing resilience and life satisfaction.