Lernmotivation; Affekt (Einfluss auf Zweitspracherwerb) ; Affect (influence on second language acquisition) ; Motivation research ; Case study (language acquisition) ; Baby talk; Motherese; Child-directed speech; Ammensprache; Babysprache; Infant-directed speech; Fatherese; Language spoken to children ; Dreisprachiger Spracherwerb; Trilingual language acquisition; Multilingual language acquisition ; Alternation (biling.) ; Language shift (biling.) ; Sprachwechsel (biling.) ; Multilingualism; Polylingualism; Plurilingualism ; Triglossia ; Switzerland (German language in) ; Schweiz (dt. Sprache in der) ; Deutsch in der Schweiz; German in Switzerland; Swiss German ; Schweiz (engl. Sprache in der) ; Switzerland (English language in) ; English in Switzerland ; Schweiz (fr. Sprache in der) ; Switzerland (French language in) ; French in Switzerland
