Word level test ; Soziokulturelles Milieu; Sociocultural environment; Socioeconomic status ; Cross-linguistic influence (psycholing.) ; Language loss (biling.) ; Attrition (biling.) ; Language attrition (biling.) ; Sprachenwahl; Language choice; Diglossia ; Zweitspracherwerb (lex.) ; Second language acquisition (lex.) ; Vocabulary (second language acquisition) ; English