KMAN Publication Inc. (KMANPUB) Journal of Assessment and Research in Applied Counseling (JARAC) 4 Serial Number 12 2022 08 30 Effectiveness of successful intelligence training on psychological well-being of Underachievement Gifted Students Effectiveness of successful intelligence training on psychological well-being of Underachievement Gifted Students 14 29 10.61838/kman.jarac.4.2.2 EN Journal Article Background and Aim: One of the psychological variables related to the academic achievement of underachievement gifted students is psychological well-being. The aim of this study was to investigate the effectiveness of successful intelligence training on the psychological well-being of low-achieving gifted students.  Methods: In this study, a single case study method with A-B-A design was used. The statistical population included all underachievement gifted high school students in Isfahan in 2020, from which 3 people were selected by purposive sampling. After determining the baseline position, 12 sessions of successful intelligence intervention were performed for students within 2 months and one month after the end of the intervention, follow-up was performed. The research instruments were Academic Achievement Scale, Wechsler Intelligence Scale for children (WISC) Fourth edition, Progress Checklist and Psychological Welfare Questionnaire. Results: The results of the study showed a steady increase in the scores of the students' psychological well-being scale, which indicates the effectiveness of successful intelligence training in increasing psychological well-being. Conclusion: Psychological well-being increases academic self-efficacy, which increases the motivation to learn more and academic progress, and on the other hand, successful intelligence training can be achieved by creating a balance between three analytical, creative, and practical abilities and a reasonable belief in weaknesses. To be effective in increasing the psychological well-being and in the result of the academic progress of gifted and underachieving students.

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