The purpose of this research is to conduct validity and reliability studies of the Scale for the Determining Social Participation for Children, developed to measure social participation skills of children aged 7-10 years. During the development of the scale, pilot schemes, validity analyzes, and reliability analyzes were conducted. In this context, the research was carried out with a total of 472 elementary school students in the ages of 7-10 years using the descriptive survey model. Exploratory and confirmatory factor analyses were performed to examine the factor structure of the scale and it was determined that the scale had a structure consisting of 16 items and one dimension and that this model had a good level of model fit. In order to examine the reliability of the scale, internal consistency and split-half reliability analyzes were performed and it was found that the scale had sufficient reliability. It can be said that the Scale for the Determining Social Participation for Children is a reliable and valid measurement tool that can be used to measure the social participation skills of students aged 7-10 years.