This study was planned to evaluate the effectiveness of a yoga-based psychosocial development program developed in line with the literature to improve the social, emotional and behavioral skills and quality of life of healthy preschool children. Watson's Human Care Model constitutes the theoretical framework of the study. The sample of the study, which will be conducted in a quasi-experimental design with a pre-test-post-test control group, consists of healthy children aged 60-72 months. The g*power 3.1.9.4 program was used to determine the sample size and it was determined that there should be at least 34 people in each group. The program consists of moving music activities, yoga postures accompanied by stories, breathing techniques and self-massage practices. The program will be implemented by the researcher, who has received specialty training in child yoga, for 30 minutes a day, two days a week for 6 weeks. Data will be collected using the Parent and Child Descriptive Data Form, Program Participation Form, Child Self-Assessment Form, Social Emotional Well-Being and Psychological Resilience Scale for Preschool Children, Social Competence and Behavior Rating Scale-30 and Pediatric Quality of Life Inventory. As a result of this study, positive effects are expected on the social, emotional, behavioral skills and quality of life of children to whom the psychosocial development program is applied.

Preschool years are a critical period in which children acquire physical, mental, emotional and social skills and development progresses rapidly. Psychosocial skills are one of the most important dimensions of development. It is emphasized that there is an important relationship between psychosocial skills and health and well-being. It is reported that socially competent and social-emotionally developed children are better able to cope with stressful situations, this skill increases school readiness, academic self-efficacy and academic success, and improves peer relations and coping skills with emotions. In the literature, school-based intervention programs that facilitate children's coping with stress, enable them to respond constructively to psychological and social difficulties, and help them develop emotion regulation skills are recommended from preschool onwards. The aim of this study was to determine the effects of a psychosocial development program that includes moving music activities, exercises including yoga postures accompanied by stories, breathing techniques and self-massage practices on social-emotional well-being and psychological resilience, social competence, behavior and quality of life of preschool children.

Inclusion Criteria:

• 60-72 months
• Do not have a health problem that would prevent them from actively participating in group games (attention deficit, hyperactivity, down syndrome, autism, etc.)
• Who have not participated in a similar program before
• Speak and understand Turkish
• Volunteer to participate in the program
• Children whose parents gave consent to participate in the study.

Exclusion Criteria:

• She has a contraindication such as heart disease, wilms tumor that would prevent her from doing massage and yoga