Language testing ; Spracherwerb (Schriftsprache) ; Language acquisition (written language) ; Kindersprache (Schriftsprache) ; Child language (written language) ; Schrifterwerb (psycholing.) ; Written language acquisition (psycholing.) ; Erstspracherwerb; First language acquisition; Ontogenese; Language acquisition ; Metalinguistic awareness (in children) ; Phonics (teaching of) ; Phonologische Bewusstheit (bei Kindern) ; Phonological awareness (in children) ; Focus on form (language teaching) ; Sprachbewusstsein (bei Kindern) ; Linguistic awareness (in children) ; Kindersprache (Sprachverständnis) ; Children's comprehension of language; Language comprehension in children ; Graphemics ; Graphemics, contrastive; Graphemik, kontrastive; Contrastive graphemics ; English ; Mandarin; Kantonesisch; Cantonese; Putonghua; Sinitic; Hakka; Yue; Chinese