University of Tabriz Journal of Modern Psychological Researches 2322-3340 18 71 2023 09 23 Comparing the Effectiveness of Parent-Child Interaction Therapy (PCIT), Child-Centered Mindfulness Instruction (Burdick) and Incredible Years Parents Program Instruction (IY) on Decreased Internalizing Symptoms of First Period Elementary Students in Tabriz Comparing the Effectiveness of Parent-Child Interaction Therapy (PCIT), Child-Centered Mindfulness Instruction (Burdick) and Incredible Years Parents Program Instruction (IY) on Decreased Internalizing Symptoms of First Period Elementary Students in Tabriz 37 50 14762 10.22034/jmpr.2023.14762 FA Anahita Obalasi Ph.D. Student, Department of Psychology, Urmia Branch, Islamic Azad University, Urmia, Iran. Ali Khademi Associate professor, Department of Psychology, Urmia Branch, Islamic Azad University, Urmia, Iran. Majid Mahmoud Alilou Professor, Department of Psychology, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran. Mahin Etemadi Nia Assistant professor, Department of Psychology, Urmia Branch, Islamic Azad University, Urmia, Iran. Journal Article 2022 03 12 The purpose of this research was to determine the difference among effectiveness of parent-child interaction therapy (PCIT), child-centered mindfulness instruction (Burdick) and incredible years program (IY) on decreased internalizing symptoms of first period elementary students in Tabriz. Necessary data was collected in the framework of semi-experimental design of pre-test, post-test kind and follow-up with three experimental groups and one control and administration of Achenbach' child behavior questionnaire (CBCL) – parents' version. The statistical population was all the first period elementary students of Tabriz and their mothers during 2020-2021. The sample included 40 students with their mothers that 30 people were selected as experimental groups and 10 people as control group through volunteer method and based on inclusion criteria. After holding treatment periods (parent-child interaction therapy, child-centered mindfulness and incredible years (IY) during three months and data analysis by mixed variance analysis, the results showed that treatment methods of parent-child interaction, child-centered mindfulness and incredible years program (IY) were effective on decreased scores of internalizing behaviors of the students since pre-test session till follow-up session.<br />the results of Bonferoni's test showed that the method parent-child interaction is more effective than the treatment method of child-centered mindfulness on decreased internalizing symptoms of the students. The purpose of this research was to determine the difference among effectiveness of parent-child interaction therapy (PCIT), child-centered mindfulness instruction (Burdick) and incredible years program (IY) on decreased internalizing symptoms of first period elementary students in Tabriz. Necessary data was collected in the framework of semi-experimental design of pre-test, post-test kind and follow-up with three experimental groups and one control and administration of Achenbach' child behavior questionnaire (CBCL) – parents' version. The statistical population was all the first period elementary students of Tabriz and their mothers during 2020-2021. The sample included 40 students with their mothers that 30 people were selected as experimental groups and 10 people as control group through volunteer method and based on inclusion criteria. After holding treatment periods (parent-child interaction therapy, child-centered mindfulness and incredible years (IY) during three months and data analysis by mixed variance analysis, the results showed that treatment methods of parent-child interaction, child-centered mindfulness and incredible years program (IY) were effective on decreased scores of internalizing behaviors of the students since pre-test session till follow-up session.<br />the results of Bonferoni's test showed that the method parent-child interaction is more effective than the treatment method of child-centered mindfulness on decreased internalizing symptoms of the students. https://psychologyj.tabrizu.ac.ir/article_14762_60b254758562ba36a2b76b146b50b002.pdf