Bilingual aphasia; Speech pathology (biling.) ; Stuttering; Dysfluency (pathol.) ; Stammering ; Speech perception (second language acquisition) ; Sprachperzeption (Zweitspracherwerb) ; Speech production/speech perception (second language acquisition) ; Inhaltswort; Content word; Open class word; Closed class word; Function word/Content word ; German ; Neuseeland (engl. Sprache in) ; New Zealand (English language in) ; Pākehā; English in New Zealand