Sentence length (psycholing.) ; Zweisprachigkeit; Bilingualism ; Sprachenwahl; Language choice; Diglossia ; Auswanderer; Emigrants; Migrant; Aussiedler; Gastarbeiter; Arbeitsmigranten; Immigrants/Emigrants ; Transfer (second language acquisition) ; Transfer (Zweitspracherwerb) ; Cross-linguistic influence (second language acquisition) ; Interference (second language acquisition) ; Dominanz (muttersprachliche) ; Übersetzung (Muttersprachdominanz) ; Inverse translation; Directionality effect (translation) ; Superiority effect (mother language) ; Critical period (second language acquisition) ; Alter (Einfluss auf Zweitspracherwerb) ; Age (influence on second language acquisition) ; Ultimate attainment (second language acquisition) ; Near-native competence (second language acquisition) ; AoA; Age of acquisition (second language acquisition) ; Sensitive period (second language acquisition) ; Processability theory; Language comprehension (second language acquisition) ; English ; Italian