Questionnaire (method.) ; Sprachpsychologie; Psycholinguistics ; Erstspracherwerb; First language acquisition; Ontogenese; 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 ; Zweisprachigkeit; Bilingualism ; Sprachattitüde; Linguizismus; Linguicism; Prestige; Monolinguale Ideologie; Monolingual ideology; Sprachliche Unsicherheit; Linguistic insecurity ; Multilingualism; Polylingualism; Plurilingualism ; Second language acquisition (psycholing.) ; Third language acquisition
