en Educational Studies پژوهشي Original <div style="text-align: justify;"><span style="color:#339933;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:15.0pt">The aim of this study was to determine the effectiveness of group motivational interview method on increasing the academic achievement of female students in the second year of high school in Isfahan (Iran). Sampling was available by method. The academic achievement status of 60 students was assessed based on their GPAs and then 32 students with poor (GPA 16-14) and very poor (GPA 10-10) students were selected and assigned to experimental group (16 people) and control group (16 people) randomly. In this study, the experimental group was exposed to motivational counseling but the control group did not receive any intervention. Analysis of covariance was used to analyze the data. Results indicated that motivational interviewing increased academic achievement in post-test (P <0.05). According to the results, school counselors are recommended for improving the academic achievement in high school students through motivational interview.</span></span></span></span><br> &nbsp;</div> academic progress, motivational interview, motivational counseling 51 58 http://ijer.hormozgan.ac.ir/browse.php?a_code=A-10-25-5&slc_lang=en&sid=1 Fatemeh Bagheri Hoseinabadi bagheri9977@gmail.com 0000-0000-0000-0000 Yes Ph.D. Student, Department of Counseling, University of Hormozgan, Bandar Abbas, Iran