„OECD’s Survey of Social and Emotional Skills (SSES) shows that students with higher economic, social and cultural status report higher levels across all assessed skills – including curiosity, tolerance, creativity, responsibility, self-control, persistence, achievement motivation, sociability, assertiveness, energy, empathy, trust, stress resistance, optimism and emotional control – compared to their counterparts from less advantaged backgrounds.“
OECD (Hrsg.), Skills that Matter for Success and Well-being in Adulthood (2025), S. 91.