Membership categorization; Social representation; Category (ethnoling.) ; Moral argumentation (in children) ; Norm of interaction; Regel (pragm.) ; Rule (pragm.) ; Interactional norm ; Spracherwerb und neurologische Entwicklung; Language acquisition and neurological development; Sprache und Denken (Ontogenese) ; Language and thought (ontogenesis) ; Cognitive development; Language acquisition and cognitive development