Yahya mianbandi - Student of MA rehabilitation counseling, Islamic Azad University, Quchan Branch
Mohhamad Arghabaee - Student of MA Family counseling, Ferdowsi University,
Reza skandare asl - MA of Family counseling,Islamic Azad University, Quchan Branch

Objectives: the purpose of this study was to investigate the effectiveness of assertive training group therapy in depression reduction and academic achievement among high school studentsin the city of Mashhad.Method: in an experimental study, ۴٨ subjects were selected using the depression Questionnaire (BDI) from among ٣٩٨ high school Students. The subject was randomly assigned to two experimental and two control groups.Assertive training grouptherapy was administered to the experimental group in eight ٩٠ minutes sessions. The control groups did not receive any therapy. All four groups completed the study s questionnaires afterthe intervention period.Data were analyzed using statistical tests of t-test, and SPSS.Result:Analysis of variance in post-test assessment showed signification difference between the variables of depression and academic achievement in three groups (P<٠.٠۵).In the otherword, depression decreased in the experimental group and a significant improvement ineducation took place.Conclusion: Assertive training group therapy is effective in decreasing depression and improving academic achievement.

assertiveness training ,group therapy- depression , academic achievement