“…Third, CFPS data have become a high‐quality data source for happiness studies in recent years, with quite a number of scholars having employed CFPS data to conduct their research on happiness (e.g., Chen et al, 2021; Li, 2022). During all the stages of data collection, the research team from Peking University adopted a telephone check, field check, audio record check, interview reviews, and statistical analyses to ensure the validity and reliability of the CFPS data, thereby guaranteeing the quality of the investigation and providing a solid foundation for the happiness study (Cheng, 2020; Xie & Hu, 2014; Xie & Lu, 2015).…”