SIT-61 ; Imitation (language acquisition) ; Articulation (child language) ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Kindersprache (Sprachverständnis) ; Children's comprehension of language; Language comprehension in children ; Imitation (language therapy) ; English (British) ; Grossbritannien (engl. Sprache in) ; Great Britain (English language in) ; Englisch in Grossbritannien; English in Great Britain; British English