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Introduction: Today, bulimia nervosa is one of the common psychological disorders that disturb cognition, emotions, and behaviors of the affected people. The current study aimed at determining the efficacy of acceptance and commitment therapy in cognitive emotion regulation and body image concerns in females with bulimia nervosa.
Methods: The current semi-experimental study with pretest-posttest design and control group was conducted on 160 females with bulimia nervosa referring to counseling centers in Mashhad, Iran. The sample consisted of 30 females with bulimia nervosa selected by purposeful sampling method and randomly assigned to either the experimental or control group. The research instruments were the Garnefski cognitive emotion regulation questionnaire and the Littleton body image concern inventory. Reliability of the instruments were measured by Cronbach's alpha. The acceptance and commitment therapy package was performed in eight 90-minute sessions for the experimental group. Data was analyzed with SPSS version 22.
Results: Negative emotion control strategies, positive emotion regulation strategies, and worries about body image before intervention in the experimental group were 50.07, 32.33, and 81.53, and in the control group were 49.60, 33.40, and 81.20, respectively with no significant difference between the groups. However, after the intervention, the negative emotion regulation strategies, positive emotion regulation strategies, and concern of body image in the intervention group were 28.47, 56.0, and 69.13 and in the control group were 49.53, 33.40 and 83.4, respectively, which showed a significant difference between the groups (P ≤ 0.01).
Conclusions: The acceptance and commitment therapy can reduce negative strategies and increases the positive strategies of emotional cognitive regulation. The findings also showed that concern about the body image is reduced by intervention. Therefore, it is recommended to use this therapeutic approach to improve bulimia nervosa and emotion regulation in such individuals.
 

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Introduction: Infertility and the therapeutic course of therapies have devastating effects on the mental and physical health of some infertile people, especially women. Supportive-psychological interventions will promote the health of infertile women. The purpose of this study was to compare the effectiveness of Acceptance and Commitment Therapy (ACT) and Compassion-Focused Therapy (CFT) therapy on self-efficacy, quality of relationships and meaning of life in infertile women.
Methods: This study was a semi-experimental design with pretest-posttest design with control group. The statistical population consisted of infertile women referred to the Mehr private infertility treatment clinic in summer of 2017 in Rasht. A total of 45 people were selected through purposive sampling method and then randomly assigned to three groups. Data were collected from the “Infertility Self-Efficacy Scale”, “Quality of Relationship Inventory” and the “Meaning in Life Questionnaire”. The validity of the instruments was reviewed and approved in previous studies. In the present study, reliability of the instruments was confirmed by Cronbach's alpha. One of the experimental groups received training on the basis of “Acceptance and Commitment Therapy during the eight sessions, and the other group received training based on “Compassion Focused Therapy” for eight sessions. The control group did not receive any training. Data analysis was performed using SPSS.21.
Results: Two effective treatments are self-efficacy, improving the quality of relationships, and promoting the meaning of life in infertile women. Therefore, education based on both therapeutic methods as an effective intervention method is recommended for empowerment and promotion of infertile women's health. There was a significant difference between the mean of self-efficacy, the quality of relationships and its sub-scales, and the meaning of life and its dimensions in the experimental and control groups in the post-test (P≤0.01). However, there was no significant difference between the two experimental groups.
Conclusions: Two effective treatments are self-efficacy, improving the quality of relationships, and promoting the meaning of life in infertile women. Therefore, education based on both therapeutic methods as an effective intervention method is recommended for empowerment and promotion of infertile women's health.
 

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Introduction: The most common gastrointestinal disorders are gastrointestinal dysfunctions, which is one of the most common types of gastrointestinal dysfunction that can impair health and quality of life. Therefore, the present study aimed to compare the the effectiveness of acceptance and commitment group therapy and cognitive-behavioral group therapy on quality of life, anxiety and depression in patients with functional indigestion.
Methods: This was a quasi-experimental study with pre-test and post-test with control group. The statistical population of the study was women with functional indigestion referring to gastrointestinal clinics in Arak in 2018. A total of 33 individuals were selected by convenience sampling and were randomly assigned into three groups (11 individuals in each group). Experimental groups received 8 sessions of 90 minutes, respectively, with acceptance, commitment, and cognitive-behavioral methods, and the control group received no training. Research instruments were the “Nepean's Dyspepsia Index for Quality of Life”, the “Beck's Anxiety Inventory”, and the “Beck's Depression Inventory”. In the present study, face validity and content validity of the instruments were measured and confirmed by experts and reliability was measured by Cronbach's alpha method. Data were analyzed in SPSS software version 22.
Results: Acceptance and commitment group therapy and cognitive-behavioral group therapy increased quality of life and reduced anxiety and depression in patients with functional dyspepsia compared to the control group. Also, cognitive-behavioral method reduced depression in comparison with acceptance and commitment, but there was no significant difference between them in enhancing quality of life and reducing anxiety (P <0.05).
Conclusions: The results showed the importance of both methods, especially cognitive behavioral group therapy in enhancing quality of life and reducing anxiety and depression in patients with functional dyspepsia. Therefore, clinical psychologists and therapists can use these methods, especially cognitive behavioral group therapy, for quality of life, anxiety, and depression interventions.
 

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Introduction: Social anxiety disorder as one of the most common anxiety disorders is a severe and persistent fear of situations in which one may or may not do something in the presence of others. The purpose of this study was to determine the effect of "Acceptance and Commitment Therapy" on the psychological flexibility and behavioral inhibition of adolescents with social anxiety disorder.
Methods: The present study was a quasi-experimental post-test with one-month control and follow-up group. The statistical population of the study included all adolescents referring to clinics in Tehran. The sample consisted of 30 adolescents with social anxiety disorder referred to Tehran clinics who were selected by random sampling and assigned to two experimental
(n = 15) and control (n = 15) groups. Research instruments included “Acceptance and Action Questionnaire-II” and “Behavioral Activation System/Behavioral Inhibition System Scale”. Content, face validity and reliability (Cronbach's alpha) were measured. The "Acceptance and Commitment Therapy" package was administered to the intervention group in 8 sessions 90-minute. Data analysis was performed using SPSS 22.
Results: Acceptance and Commitment-Based Therapy" in post-test and follow up phase significantly improved psychological flexibility and decreased behavioral inhibition of adolescents with social anxiety disorder in the experimental group compared to the control group (P < 0.001). These results were also consistent with a one-month follow-up.
Conclusions: Given the desirable effect of "Acceptance and Commitment-Based Therapy" on psychological flexibility and reduction of behavioral inhibition in adolescents with social anxiety disorder, it is suggested to use this approach in the prevention and treatment of psychological and behavioral problems of social anxiety disorder.
 

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Introduction: Improving the psychological health of prisoners is one of the programs of the prisons organization, which prevents the recurrence of crime and social security. The aim of this study was to determine the effectiveness of "Acceptance and Commitment Therapy" (ACT) on resilience and cognitive flexibility in prisoners.
Methods: The method of the present study was quasi-experimental and its design was pre-experimental-post-experimental-follow-up with control group. The statistical population of the present study was all prisoners of non-financial crimes in Ahvaz Central Prison in 2019. The research sample selected 30 people using the convenience sampling method from among the eligible applicants to participate in the "Acceptance and Commitment Treatment" and randomly (as a lottery) to two groups of intervention and control (15) people were assigned to each group. The research instruments were "Cognitive Flexibility Scale" and "Connor and Davidson Resilience Scale". Qualitative content validity and internal consistency was performed by Cronbach's alpha coefficient. After receiving the pre-test, the intervention was performed in the eight, 90-minute sessions for the intervention group, but the control group received their usual interventions. Data analysis was performed with SPSS.21.
Results: The trend of changes in the intervention group compared to the control group in the measurement stages in the variables of resilience (P=0.001, F=33.475) and cognitive flexibility (P=0.001, F=18.656) Significantly different (P <0.05) and about 54% and 40%, respectively, of the differences in observation in the variables of resilience and cognitive flexibility due to group membership (intervention). To compare these changes over time, Benfron's subtest was used. Changes between pre-test with post-test, pre-test with follow-up, and post-test with follow-up are only meaningful in the intervention group (P <0.05).
Conclusions: "Acceptance and Commitment Treatment" increased the resilience and cognitive flexibility. Therefore, it is recommended that this method be used to increase cognitive resilience and flexibility in prisons.

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Introduction: Major depression is one of the most common psychological disorders that affects a person's performance and has several negative side effects. The aim of this study was to determine the effectiveness of "Acceptance and Commitment Therapy " on emotion regulation strategies, dysfunctional attitudes and resilience in people with major depression.
Methods: The study was a quasi-experimental study with pre-test, post-test and follow-up and a control group. The statistical population included people with major depression who referred to counseling centers and psychological services in Sari. 30 people were selected by simple random sampling replaced in the intervention group (15 people) and control group (15 people). In order to collect data demographic questionnaire, "Cognitive Emotion Regulation Questionnaire", "Dysfunctional Attitude Scale" and "Connor ‐ Davidson Resilience Scale" were used. The validity of the instruments was assessed through the construct validity of confirmatory factor analysis and the reliability of the instruments by Cronbach's alpha coefficient. Data were analyzed using SPSS .21.
Results: "Acceptance and Commitment Therapy" is effective in improving emotion regulation strategies, dysfunctional attitudes and resilience in people with major depression (P <0.05).
Conclusion: Emotion regulation strategies, dysfunctional attitudes, and resilience in people with major depression can be modified through "Acceptance and Commitment Therapy". It is suggested that education based on this treatment be conducted with the aim of empowering and promoting the mental health of people with depression in counseling and psychotherapy centers.
 

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Introduction: Stress is a common problem during adolescence and is the cause of many mood disorders and anxiety; which requires timely interventions. The present study was conducted with the aim of the effectiveness of "Acceptance and Commitment Therapy" on stress symptoms in female high school students.
Methods: This research was a quasi-experimental design with pre-test, post-test and control group that was conducted in the academic year of 2019-2020 in the statistical population of female students in the first secondary school of Someh Sara. 40 students participated in this study voluntarily and with simple random by lottery method were assigned to the intervention and control groups. But in the post-test phase, each group was reduced to 16 people. Data were collected using a questionnaire of demographic characteristics and " Stress Symptoms Inventory". Content validity index and reliability were checked and confirmed by internal consistency method by calculating Cronbach's alpha and stability by retesting method. After receiving the pretest, the intervention group underwent "Acceptance and Commitment Therapy" in 8 sessions. During this period, the control group did not receive any intervention, both groups then completed the post-test. Data analysis was performed in SPSS .21.
Results: The intervention played an effective role in reducing Physical symptoms (F= 68.855,                               P= 0.001) and cognitive (F=22.458, P=0.001), behavioral (F=33.472, P=0.001) symptoms and also, the total score (F = 78.221, P=0.001) of the intervention group. In contrast, the intervention had no effect on emotional symptoms (F= 3.795, P= 0.062). In total, "Acceptance and Commitment Therapy" was able to explain 0.73 of the changes in the overall score of stress symptoms in the intervention group.
Conclusions: "Acceptance and Commitment Therapy" has played an effective role in reducing stress symptoms in adolescents. Therefore, it is suggested that therapists and health care providers consider the importance of this treatment in reducing stress in adolescents.
 

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Introduction: Diabetes is a chronic disease that affects all aspects of a person›s life. The aim of this study was to compare «Combined Therapy Package Focused on Compassion and Acceptance and Commitment Therapy» with «Cognitive Behavioral Therapy» on depression and glycosylated hemoglobin in women with type 2 diabetes.
Methods: The present study was performed in a quasi-experimental 3-group method with pre-test post-test and 2-month follow-up. 47 women with type 2 diabetes referred to Shahid Asghar Shabani Diabetes Clinic in Isfahan in 2017 were selected by purposive sampling. Then, by simple random assignment and using the lottery method in 3 treatment groups, «Combined Therapy Package Focused on Compassion and Acceptance and Commitment Therapy» with «Cognitive Behavioral Therapy» and control were replaced. Data were collected using a demographic questionnaire, “Beck Depression Inventory” and Glycosylated Hemoglobin test (HbA1C). Both groups received 10 sessions of 2 hours per week of treatment intervention. The control group did not receive any treatment intervention. Data were analyzed in SPSS. 24.
Results: The scores of the participants in the post-test intervention groups «Combined Therapy Package Focused on Compassion and Acceptance and Commitment Therapy» « and «Cognitive Behavioral Therapy» had a significant decrease compared to the control group in depression (P<0.05). «Combined Therapy Package Focused on Compassion and Acceptance and Commitment Therapy» was significantly higher than «Cognitive Behavioral Therapy» on depression (P<0.05), but in the case of Glycosylated Hemoglobin, the results showed that the scores of participants in the intervention groups there were no significant differences in the post-test of «Combined Therapy Package Focused on Compassion and Acceptance and Commitment Therapy” and «Cognitive Behavioral Therapy” (P> 0.05).
Conclusions: «Combined Therapy Package Focused on Compassion and Acceptance and Commitment Therapy» and «Cognitive Behavioral Therapy» reduced depression in patients with diabetes. Therefore, the use of this method to reduce depression in diabetic patients is suggested.
 

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Introduction: Impaired emotional regulation is one of the problems of patients with obsessive-compulsive personality disorder. This research was conducted with the aim of comparing the effectiveness of "Schema Therapy" and "Acceptance and Commitment Therapy" on emotional regulation of patients with obsessive-compulsive personality disorder.
Methods: The method of the current research was semi-experimental, pre-test, post-test and one-month follow-up with intervention and control groups. The statistical population included all patients with obsessive-compulsive personality disorder who referred to psychological and counseling service centers in Tehran in 1400. Among them, 3 centers were selected as convenience, and 51 patients with obsessive-compulsive personality disorder were selected based on the entry and exit criteria and by accessible sampling. Then, using a simple random method, they were assigned to 3 groups (17 people) “Schema Therapy, "Acceptance and Commitment Therapy" and the control group. The research Instruments included a demographic questionnaire and "Difficulties Emotion Regulation Scale”. Face validity and reliability were checked by internal consistency method by calculating Cronbach's alpha coefficient. The "Schema Therapy" and "Acceptance and Commitment Therapy" groups participated in 8 non-attendance sessions of 1.5 hours per week, and the control group was on the waiting list. The data were analyzed with SPSS. 25.
Results: There was a significant difference between the intervention and control groups; and both interventions had a significant positive effect on the emotion regulation of patients with obsessive-compulsive personality disorder, and the effect of these therapeutic interventions was stable in the follow-up phase as well (P<0.05). Also, the results of Benferroni's post hoc test indicated that the effectiveness of "Schema Therapy" on emotion regulation was more than "Acceptance and Commitment Therapy" (P<0.05).
Conclusions: "Schema Therapy" and "Acceptance and Commitment Therapy" can regulate the emotions of patients with obsessive-compulsive personality disorder. It is suggested that therapists and counselors use these treatments in order to improve the emotion regulation of patients with obsessive-compulsive personality disorder along with other therapeutic interventions. 
 

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Introduction: Effective communication is the foundation of a healthy and successful family. The aim of this study was to compare the effectiveness of "Acceptance and Commitment Therapy” (ACT) and "Compassion Focused Therapy" (CFT) and " Acceptance and Commitment Therapy Enriched with Compassion " on communication patterns of married women suffering from depression and marital conflicts referred to counseling and psychological centers in Mashhad. 
Methods: The method of the current research was semi-experimental of type pre-test, post-test and follow-up with a control group. The statistical population of the study included married women suffering from depression and marital conflicts who referred to counseling and psychological centers in Mashhad in 2019. 60 people were selected by sampling in convenience method. Then by simple randomization (lottery), they were divided into 4 groups: "Acceptance and Commitment Therapy", "Compassion-Focused Therapy", "Acceptance and Commitment Therapy Enriched with Compassion " and the control group. (15 people in each group). Data collection instruments were demographic questionnaire, “Communication Patterns Questionnaire”, “Beck Depression Inventory-II” and “Marital Conflict Questionnaire”. Content validity was calculated by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient of the instruments. The first intervention group received "Acceptance and Commitment Therapy" and the second intervention group "Compassion-Focused Therapy" and the third intervention group "Acceptance and Commitment Therapy Enriched with Compassion" in 8 90-minute training sessions, and the control group was on the waiting list for received intervention. Data analysis was done with SPSS. 21.
Results: There is a significant difference between the pre-test, post-test and follow-up communication patterns in the intervention and control groups (P<0/01). The results of the Bonferroni pairwise comparison test indicate that the significance level of the test of all 3 intervention groups with the control group is less than 0.05 (P<0/01) and this difference is more for the "Acceptance and Commitment Therapy Enriched with Compassion" group. 
Conclusions: "Acceptance and Commitment Therapy" and “Compassion Focused Therapy" and "Acceptance and Commitment Therapy Enriched with Compassion" are effective on communication patterns and "Acceptance and Commitment Therapy Enriched with Compassion" has been more effective in improving communication patterns over time. Therefore, it is suggested that the principles of this type of therapy be used in cultural and family centers such as family cultural centers of the country to prevent conflict in the future relationships of couples by using short-term training courses.
 

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Introduction: One of the problems of people undergoing hemodialysis is the reduction of the tolerance threshold and the reduction of resilience against psychological problems. The present study was conducted with the aim of comparing the effectiveness of "Acceptance and Commitment Therapy" and "Metacognitive Therapy" on the resilience of women undergoing hemodialysis.
Methods: The current research was semi-experimental using a pre-test, post-test and follow-up design with 3 months later. In this study, 54 hemodialysis patients referred to Imam Ali (AS) and Shahid Rajaei Hospital in Karaj in 2019 were selected by convenience sampling method and included in the study by random and lottery method. Demographic questionnaire and "Connor-Davidson Resilience Scale" were used to collect data. The content validity of the instrument was satisfied by previous studies, and the reliability was calculated by the internal consistency method by calculating the Cronbach's alpha coefficient and by the test-retest method. For the "Acceptance and Commitment Therapy" group (18 people), 8 sessions of 90 minutes "Metacognitive Therapy" group (18 people), 8 sessions of 60 minutes, were held in the dialysis department of the hospital. Data were analyzed with SPSS. 23 with a significance level of less than 0.05.
Results: The results of the multivariate covariance analysis showed significant differences between the intervention and control groups in the post-test and follow-up stages (P≤0.001). The effect size of the intra-group and interaction sources of change for the resilience variable was 0.800 and 0.775 percent, respectively. 
Conclusions: Both therapy methods have had an effect on improving the endurance of patients undergoing hemodialysis treatment. It is suggested to use therapeutic interventions to increase resilience in hemodialysis patients.
 

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Introduction: Substance dependence is the second most common psychiatric disorder. "Acceptance and Commitment Therapy" is a behavioral therapy that is used in the treatment of addicts undergoing treatment with methadone maintenance. The purpose of this research was to determine the effectiveness of "Acceptance and Commitment Therapy" on the sense of coherence among addicts undergoing treatment with methadone maintenance in 2022.
Methods: The research method was semi-experimental with a pre-test and post-test with a control group. The statistical population included addicts treated with methadone maintenance in Chalus city in the summer of 2022. A statistical sample of 30 addicts treated with methadone maintenance was selected from the addiction treatment center in Chalus city. Then, using a simple random method of lottery type, 15 people were assigned to the intervention group and 15 people to the control group. Data collection instruments included demographic questionnaire and "Sense of Coherence Scale". The validity of the scale was not measured and previous researches were used. The reliability was measured by the internal consistency method by calculating Cronbach's alpha coefficient. "Acceptance and Commitment Therapy" was implemented for the intervention group during 8 sessions of 90 minutes (2 sessions per week). The data were analyzed in SPSS. 22.
Results: "Acceptance and Commitment Therapy" has been effective in improving the sense of coherence and sub-scales of manageability and comprehensibility among addicts undergoing treatment with methadone maintenance (P<0.05).
Conclusions: "Acceptance and Commitment Therapy" has an effect on the sense of coherence and its 2 subscales. It is suggested that mental health specialists in the field of addiction should take advantage of the above therapy and in this way try to increase the sense of coherence and mental health of addicts undergoing treatment with methadone maintenance.
 

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Introduction: Breaking the marital contract is one of the most traumatic issues that women face and it can lead to cognitive, emotional and behavioral symptoms in them. The present study was conducted with the aim of comparing the effectiveness of "Existential Acceptance and Commitment Therapy" with "Compassion-Based Therapy" on self-differentiation and life expectancy in women affected by husband's breach of contract.
Methods: The present research was semi-experimental with a pre-test-post-test, follow-up and control group design. The statistical population of the present study were women affected by the breach of contract by their husbands who referred to counseling and screening centers in Isfahan city in the Spring of 2023, of which 51 were randomly assigned to the first and second intervention groups and the control group (17 in each group). Research tools included: demographic questionnaire, "Self of Differentiation Inventory" and "Life Expectancy Questionnaire". Content validity was measured by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient. The participants of the "Existential Acceptance and Commitment Therapy" group and the "Compassion-Based Therapy" group were treated during 10 sessions 90-minute. The control group received the treatment after the completion of the study. Data were analyzed using SPSS. 22.
Results: The results of analysis of variance with repeated measures and Bonferroni's post hoc test showed that "Existential Acceptance and Commitment Therapy" and "Compassion-Based Therapy" were effective in increasing self-differentiation and life expectancy in women affected by husband's breach of contract (P<0.01). There was no significant difference between the effect of two treatment methods on self-differentiation and hope for the future (P<0.01).
Conclusions: "Existential Acceptance and Commitment Therapy" and "Compassion-Based Therapy " have been effective in increasing self-differentiation and life expectancy in women affected by husband's breach of contract. Therefore, it is suggested to therapists, marriage and family counselors that the above treatment methods are used to reduce the conflicts of women who are affected by their spouse's breach of contract.
 

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Introduction: Low academic performance is a common problem among students. Therefore, the implementation of psychological interventions in this group is of great importance. The aim of the present study was to determine the effectiveness of "Acceptance and Commitment Therapy" on academic buoyancy and psychological capital in students with low academic performance. 
Methods: The research method was semi-experimental with a pre-test-post-test-follow-up design of 2 months with a control group. The statistical population included all female students of the second secondary level of Borujerd city in the academic year of 2023-2024, among them, 30 people were selected by cconvenience sampling method and assigned to the intervention and control groups by simple random assignment. The research instruments included demographic questionnaire, “Academic Buoyancy Scale” and “Psychological Capital Questionnaire". Content validity of instruments was measured by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient. After 8 sessions of " Acceptance and Commitment Therapy" for the intervention group, the data were analyzed in SPSS.22. 
Results: " Acceptance and Commitment Therapy” over time has been effective in increasing academic consistency (P=0.01, F=27.21) and psychological capital (P=0.01, F=89.44) in students. 
Conclusions:"Acceptance and Commitment Therapy" was effective in increasing academic persistence and psychological capital of students with low academic performance. It is suggested that in order to increase academic buoyancy and psychological capital, "Acceptance and Commitment Therapy" courses for knowledge Students will be held. 
 

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Introduction: Premenstrual syndrome can have unpleasant personal and academic consequences for female students. Therefore, the implementation of psychological interventions in this group is of great importance. The aim of the present study was to determine the effectiveness of "Acceptance and Commitment Therapy" on the desperation and shame in girls with premenstrual syndrome.
Methods: The research method was semi-experimental with a pre-test-post-test-follow-up design of 2 months with a control group. The statistical population included all female students of the first secondary schools of Mashhad in the academic year of 2023-2024. Among them, 30 people were selected through purposive sampling using a diagnostic interview and identified with premenstrual syndrome and were randomly assigned to the intervention and control groups using a simple lottery. The research instruments included a demographic questionnaire, "State Desperation Scale" and "Guilt and Shame Proneness Scale". Content validity of instruments was measured by qualitative method and reliability by internal consistency method by calculating Cronbach's alpha coefficient. After conducting 8 sessions of "Acceptance and Commitment Therapy” for the intervention group, the data were analyzed in SPSS. 22.
Results: "Acceptance and Commitment Therapy” over time has been effective in reducing desperation state (P=0.001, F=10.654) and shame (P=0.001, F=8.413) in the intervention group compared to the control group.
Conclusions: "Acceptance and Commitment Therapy" was effective in reducing the desperation state and shame of girls with premenstrual syndrome. It is suggested that “Acceptance and Commitment Therapy" be held for students in order to reduce the state of despair and shame.
 

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Introduction: Social phobia is one of the most common psychological disorders, which is characterized by the fear of being in social situations and the fear and worry of being negatively evaluated by others. The purpose of this research was to determine the effectiveness of "Acceptance and Commitment Therapy" on rumination of anger and multidimensional body-self relations of female students of the secondary level with social phobia disorder in Ahvaz city.
Methods: This research was a semi-experimental design with pre-test, post-test and follow-up (60 days) with a control group. The statistical population of this research included all female students of the secondary level of Ahvaz city in the academic year of 2022-2023. The research sample included 60 people with known social phobia disorder, were divided by simple random sampling based on lottery into 2 intervention groups (30 people) and control (30 people). Research instruments include demographic questionnaire, "Anger Rumination Scale", "Multidimensional Body-Self Relations Questionnaire" and "Social Phobia Inventory". which was implemented at the level of 2 groups of subjects and in 3 stages of pre-test, post-test and follow-up. Validity of instruments using qualitative methods and reliability was measured by internal consistency method by calculating Cronbach's alpha. The experimental group had 8 sessions and each session lasted for 60 minutes as a group and weekly and based on the "Acceptance and Commitment Therapy". The data was analyzed by SPSS .23.
Results: "Acceptance and Commitment Therapy" is effective on anger rumination (P<0.01, F=21.07) and Multidimensional Body-self Relations (F>0.05, P=5.97) of female students of the secondary level with social phobia.
Conclusions: "Acceptance and Commitment Therapy” had a significant effect on reducing rumination of anger and Multidimensional Body-self Relations. It is suggested that counselors in school help to reduce the level of rumination of anger and reduce concern about students' body image by implementing "Acceptance and Commitment Therapy" in case of social phobia in students.