This dataset is the supporting data for the thesis titled “The Impacts of Perceived Social Mobility on Dehumanization and Prosociality". This dataset delves into the realm of social psychology, specifically exploring the psychological impacts of perceived social mobility. The total sample size is around 91000. It includes data from 15 studies that covers behavioral experiment data, text analysis data and survey data. The data files are the datasets for all 15 studies.The datasets include the variables concerned in each study, and the demographic information such as gender, age, subjective socioeconomic status and educational level.