This project will be conducted in a private autism center in order to investigate the effects of Triple P training, which will be given to parents of children with Autism Spectrum Disorder, on the children's repetitive behaviors and the parents' burnout levels. The study is a randomized controlled trial and the study sample will consist of parents of children with Autism Spectrum Disorder. The children/parents included in the study sample will be numbered according to the order of arrival and 35 will be assigned to the intervention group and 35 will be assigned to the control group. During the randomization phase of the study, 70 children/parents with ASD will be randomly assigned to the intervention and control groups using Statistical Analysis Software. Data analysis will be performed using the Statistical Package for Social Sciences (SPSS v26.0, IBM Corp., Armonk, NY, USA). Descriptive data will be analyzed as mean, frequency and percentage. The conformity of quantitative data to normal distribution will be evaluated using the Kolmogorov-Smirnov test. Paired sample t-test will be used to compare dependent groups with normal distribution, independent sample t-test will be used to compare independent groups with normal distribution. P value will be considered significant if it is less than 0.05.