Background:  Academic progress is one of the main priorities of schools, which is the main goal of education. Aims:  This study investigated Achievement Motivation as a mediator of the relationship between Test Anxiety and Locus of Control with Academic Achievement between Test Anxiety and Locus of Control. Method: Correlation studies based on structural equation modeling technique, in particular regression equations (combining path analysis and factor analysis second). A total of 508 students (255 boys and 253 girls) were selected by simple random sampling. Hermans achievement motivation inventory, Test Anxiety Questionnaire and Rotter·s Locus of Control Scale were used to collect data. GPA was as academic achievement. Results:  The results showed that the research model was confirmed and in general, 27% of academic achievement can be explained by achievement motivation, test anxiety and locus of control. Conclusions: So with decrease of Test Anxiety and increase locus of control can increase achievement motivation in students and improve academic achievement. 

Background: Research has shown that the tendency to addiction is influenced by personality characteristics and through mediating variables including emotional well-being as emotional and cognition values and mental experience of positive emotions and life satisfaction. but there is a research gap in the researched population.
Aims: The present study was conducted with the aim of investigating structural equation modeling of the relationship between personality traits and addiction tendencies in adolescents: the mediating role of emotional well-being.
Methods: This research was of a descriptive-correlation type with structural equations. The statistical population of the present study was all male students of the second secondary level of public high schools in Rasht city in the academic year of 2019-2019, numbering 16451 students. In order to determine the sample size, the number of 300 male students was selected multi stage cluster sampling method and completed the five-factor questionnaires of Neo personality of Costa & McCrae (1970), emotional well-being scale of Keyes and Magyarmo (2003) and Farjad addiction tendency questionnaire (2006) were completed. Data were analyzed with Pearson correlation coefficient, path analysis and structural equations and with spss 19 and amos 22 software.
Results: The results showed that the direct effect of extroversion (0.21) and emotional irritation (0.22) on addiction tendency is positive and significant (P < 0.05). Also, the indirect effect of psychological irritation through emotional well-being on addiction tendency was significant.
Conclusion: According to the obtained results, it can be said that the personality traits of extroversion and neuroticism directly and neuroticism indirectly had an effect on the level of addiction tendency, Therefore, focusing on the results of the current research, can be to reduce the tendency to addiction in adolescents.