„Concerning science achievement, the present study showed that IBSE (Anm.: inquiry-based science education) is not a significant mediator of the relationship between Waldorf school attendance and science achievement. Therefore, Waldorf students’ underperformance in science may not be explained by their higher exposure to IBSE. […] Rather ineffective IBSE strategies might be applied in Waldorf education.“
Dr. Silvia Salchegger u. a., Explaining Waldorf students’ high motivation but moderate achievement in science. In: Large-scale Assessments in Education, (2021) 9:14, S. 17.