Discussion
depression, social dysfunction, anxiety/insomnia
This study aimed to evaluate the effect of problem-solving and assertiveness skill training on self-esteem and mental health improvement of 10th grade female student. The statistical analysis results demonstrated a significant difference in both self-esteem and mental health variables between intervention and control groups. Also, all self-esteem subscales such as general self, home parents, social self-peers and school academic showed significant statistical difference before and after the intervention. Significant difference in all four subscales of mental health variable including somatic symptoms, social dysfunction, anxiety/insomnia, and severe depression was obvious before and after the intervention, as well.In the following, there are examples of some studies similar to our findings. Adawi and colleagues (2016) showed that problem-solving skills have a positive significant effect on creativity and self-expression of students [To explain such improvement in variables, it is important to remember that problem solving is one of the constructive skills which can directly affect people’s mental health. Experts consider lack of self-esteem and reduced mental health in different conditions as one of the most important struggles. They believe that if people respond immediately while facing a problem, there may not be enough time for cognitive responses. Therefore, problem solving method can be effective in controlling the emotional reaction and this could be how problem-solving skill training may have a positive effect on self-esteem [On the other hand, there are other studies that show a significantly positive correlation between self-esteem and mental health in which more self-esteem comes with higher levels of mental health [