In this study, a valid and reliable scale was developed to measure parents' perceptions of their children's social development in physical education classes. In the first part of the research, the relevant literature reviewed and student-parent interviews were held. As a result of the data obtained from the interviews, a 30-item draft scale was created. The draft scale was applied to 30 parents of students, and as a result of the feedback received, 5 items were removed from the pool. The remaining draft scale items were submitted to expert opinion and the number of items was reduced to 22. The 22-item scale was applied to 240 volunteer parents for Exploratory Factor Analysis (EFA) and to 216 different volunteer parents for Confirmatory Factor Analysis (CFA). As a result of the analyses, the final scale consisting of 15 items and four sub-dimensions was obtained. The Cronbach's Alpha values of the sub-dimensions were found to be between 0.74-0.79. In the final part, the 15-item scale was applied to 540 volunteer parents. Accordingly, while it was observed that parents' PSDSPEL scores were higher in the sub-dimension of showing positive behavior, it was determined that male parents' perception levels were higher than female parents. As a result of the study, it was found that the validity, reliability and internal consistency coefficients of the scale were at acceptable levels.