„Regarding the relationship between IBSE (Anm.: inquiry-based science education) and motivational outcomes it was shown a universal positive relationship between the amount of IBSE and students’ enjoyment of science ranging between r=0.20 and 0.30 in most countries. Similar positive but weaker associations are observed between interest in broad science topics and exposure to IBSE.“
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. 4.