title: A Summary and Commentary on Smith et al.'s "Why peer discussion improves student performance on in-class concept questions" (Science 2009).
authors.affiliation: Universität Witten/Herdecke, Integriertes Begleitstudium Anthroposophische Medizin, Witten, Deutschland.
authors.forename: Christian
authors.initials: C
authors.lastname: Scheffer