Aim: The purpose of this study was to investigate the effectiveness of life skills training on personal-social adjustment and psychological capital of high school students in Tehran during 1397. Methodology: The method used in this study was applied in terms of purpose and in terms of data collection, a quasi-experimental design with pretest-posttest design with control group and random sampling. The statistical population consisted of all female secondary school students in 1397. Using random sampling, 30 students in both experimental and control groups (15 subjects) and control (15 subjects) were considered as the sample size. The experimental group received 8 life skills training sessions, and the control group did not receive any treatment. In order to collect information, two questionnaires, personal-social adjustment (California, 1953) and McGee's Psychological Capital questionnaires (2011) were used. In order to determine the reliability of the questionnaire, Cronbach's alpha coefficient was used and the coefficient for each questionnaire was higher than 0.7. Content validity was also used to assess the validity of the questionnaire, which was approved by the relevant experts. Data analysis was performed using SPSS software in two sections: descriptive and inferential (covariance analysis). Findings: Findings showed that life skills training increased personal and social compatibility of students. Based on the results of the findings, life skills training increased the psychological capital and its components in students(P> .0 / 01). Conclusion: Therefore, it seems that life skills training can enhance students' adaptation and provide effective techniques for increasing psychological capital.
