Objectives: The aim of the present study was to predict students’ academic performance based on attachment styles and different levels of adjustment. Method: This is a correlational study. Samples included 383 students (167 girls and 216 boys) who were chosen using multi-stage cluster sampling from high school students of district 2 in Tehran; they completed Collins and Read’s Revised Adult Attachment Scale (RAAS) and Singha and Sing’s Adjustment Inventory for high School Students (AISS). Students' grade-point averages were used to measure their academic performance. Data were analyzed using Pearson’s correlation and analysis of regression. Results:  The results revealed a significant negative correlation between avoidant and anxiety attachment styles with academic performance (p<0.05; r=-0.43, r=-0.56, respectively), and significant positive correlation (p<0.05, r=0.56) between safe attachment style and academic performance. Also, academic, emotional and social adjustment had a significant relationship with students’ academic performance (r=0.66, r=0.67, r=0.71, respectively; p<0.05). About 62% variance of academic performance was predictable by attachment and adjustment styles. Conclusion: Considering the results of the current study, the importance of attachment styles and different levels of adjustment should be considered as important factory in academic achievement of students.

Objectives The purpose of this research was to study the effect of acceptance and commitment therapy in decreasing cognitive avoidance among students with Specific Learning Disorder.
Methods This was an experimental study with pre-test, post-test, and a control group. The research population included 40 5th-grade male students suffering from Specific Learning Disorder in Ardabil in 2015. The research sample was selected using multi-step cluster sampling and random assignment classified into two groups: experimental group (n=20) and control group (n=20). The following tools were used for data collection: Kay Math Mathematic Test, Raven Intelligence Test, Reading Test of Shafiei et al., Falahchay Writing Expression, Cognitive Avoidance Questionnaire, and Diagnostic Interview Based on DSM-5. The data were analyzed by multivariate of covariance analysis (MANCOVA) model. 
Results The results revealed that the acceptance and therapy was effective in decreasing cognitive avoidance in students suffering from Specific Learning Disorder (P<0.001). In other words, acceptance and commitment therapy help the people to be aware of their negative emotions and accept them to reduce cognitive avoidance.
Conclusion The results of this research showed that since acceptance and commitment therapy can have a significant impact on the acceptance of emotions and confrontation with them, this treatment can play an eminent role in decreasing cognitive avoidance in such students.