感恩干预与教育中的品格力量发展：系统评价与元综合

Gratitude has emerged as an important character strength within positive psychology, with growing applications in education. This systematic review and meta-synthesis, conducted in accordance with PRISMA 2020 guidelines, synthesizes evidence from 24 empirical studies involving 14,285 participants across primary, secondary, and tertiary education. All statistical analyses, including meta-analytic synthesis and moderator analyses, were performed using R (version 4.3.2) in the RStudio environment. Findings indicate that structured gratitude interventions produce small-to-moderate improvements in