Comparison of the effectiveness of parent-child interaction therapy (PCIT), child-centered mindfulness training (Burdick) and teaching incredible parent years (IY) program on reducing the internalization symptoms of elementary school students in Tabriz

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.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.