„Although retention decisions often trigger an immediate decrease in students’ well-being, there arise still benefits from this event in the short-term, middle-term and long-term, though trajectories differ by gender and school type.“
Prof. Dr. Katharina Rathmann u.a., Critical Events throughout the Educational Career: The Effect of Grade Retention and Repetition on School-Aged Children’s Well-Being (2020), S. 1.