Spracherwerb (pragm.) ; Communicative competence (language acquisition) ; Kommunikative Kompetenz (Spracherwerb) ; Pragmatic competence (language acquisition) ; Pragmatische Kompetenz (Spracherwerb) ; Conversational analysis (language acquisition) ; MLU; Mean length of utterance; Sentence length (child language) ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Spracherwerb und neurologische Entwicklung; Language acquisition and neurological development; Sprache und Denken (Ontogenese) ; Language and thought (ontogenesis) ; Cognitive development; Language acquisition and cognitive development ; Kindersprache (Sprachverständnis) ; Children's comprehension of language; Language comprehension in children ; Morbus Down; Mongolismus; Trisomie 21; Down's syndrome
