According to the findings of this investigation, it can be stated that the study did not reveal any significant difference in the education levels of parents (father and mother) between the two groups.
The results of this study demonstrated that positive psychological intervention was effective in reducing the social isolation of students. The intervention program led to lower social isolation scores in the experimental group compared to the control group. These results are consistent with previous findings (
16,
17,
19-
22,
24,
25).
The adolescent years can be the most vulnerable period in a person's physiological, psychological, and social development. Adolescents are still searching for their identity, which may increase the risk of developmental disabilities associated with social isolation at this stage of life. Social isolation is positively and significantly associated with depressive symptoms (
15). Loneliness and social isolation are main distinguishing criteria for the psycho-social well-being of individuals in the community. Social isolation is bound to the size of the social network, encompassing the individuals with whom a person is connected in the community, while loneliness is a subjective perception of social disconnection (
8). The process of socialization includes skills, norms, values, thoughts, attitudes, and behaviors that children learn to acquire social skills in the family and school, but the important role of school in the socialization of students during these years is undeniable (
24). Social isolation is a form of social failure because it entails a reduction or cessation of social relations in society. Social isolation in students is characterized by low interaction with classmates, students, and peers (
20). There is no clarity about the precise definition and measurement of concepts such as social isolation, loneliness, and distance from society. Social isolation is related to loneliness, but they are not synonymous (
6). People who are socially isolated or lonely express having lower degrees of social support. Social isolation in primary and secondary school students is related to mental health problems and psychological well-being. This highlights the significance of early intervention to prevent the prolonged effects of social isolation and underscores the need for investigation to study this phenomenon from a developmental viewpoint. It is not obvious how isolation arises and continues. Understanding the function of isolation in child growth can provide clues about how it affects adult health (
11). During the corona epidemic, social isolation and loneliness led to increased anxiety and depression, and the majority of people suffered from social isolation, which was particularly observed in children and teenagers with higher levels of anxiety, depression, and social isolation. Clinical services should be accompanied by prevention and early intervention to alleviate the burden of psychological problems during a crisis like the corona pandemic. According to research conducted during the corona period, despite quarantine and social distancing in schools, children and teenagers experienced mental health problems five times more than usual and needed mental health services, and the consequences of loneliness and social isolation inadvertently created conditions for potentially dangerous problems (
15). Positive psychological interventions have had a significant effect on improving the quality of life for adolescents in previous research and studies. They have also increased happiness, meaning in life, life expectancy, optimism, mental and psychological well-being, better communication, autonomy, and self-improvement. They have reduced anger, violence, bullying, self-blame, depression, and anxiety, thus, they can be used to promote growth and improve the mental health of students (
21). Positive psychology is an intervention that assumes that life is more than just having problems and solving them. It believes that humans can optimize their moral characteristics and traits, but acknowledges that a person without symptoms or disorders may or may not live well. Today, there is widespread acceptance of the need for more studies and research on the effectiveness of positive psychology on social isolation, and by conducting various and extensive research, we can take steps to reduce the psychological burden of social isolation (
6). It seems that positive psychology interventions and treatments for students can improve social isolation.
The teenage years are of special importance for students due to maturity and identity development. During this period, various psychological disorders such as anxiety, stress, depression, bullying, family problems, among others, can arise. Therefore, receiving positive feedback from others and possessing social competence can help mitigate the consequences of the risk of social isolation (
24). Generally speaking, in modern and urbanized societies, individuals are expected to be more socially active than before, especially in social environments like schools and workplaces. For students, psychological training and interventions are crucial for preventing risky behaviors such as bullying, exploitation, and abuse (
11). Additionally, the researcher offers suggestions for future research, including utilizing the influence of teachers, principals, and school assistants in student interactions. Conducting school-based positive psychology interventions at elementary, middle, and high school levels could be beneficial, as prevention is often more effective than treatment. Given the effectiveness of school-based positive psychology interventions, school managers and counselors should dedicate time to teaching positive psychology techniques alongside other subjects. Based on the findings of this study, it is recommended that health policymakers pay more attention to the critical teenage years, where individuals may experience traumatic behaviors such as social exclusion and communication difficulties with peers. Prevention methods should be implemented, and appropriate role models should be provided. Furthermore, given the confirmation of the hypothesis regarding the effectiveness of positive psychology on social isolation, health policymakers can collaborate with psychologists and counselors to address adolescents' psychological issues, especially during the COVID-19 pandemic. Additionally, other institutions such as municipalities, sports and youth organizations, and health centers can allocate resources to create spaces outside the school environment where teenagers can benefit from positive psychology techniques to reduce social isolation.