Validity (method.) ; Evaluation criterion (method.) ; Dysphasia; Aphasia ; Aphasia test ; Pathologische Sprachproduktion; Pathological language production; Speech production (pathol.) ; Screening (speech therapy) ; Assessment criterion (speech therapy) ; Clinical linguistics ; Pragmatic competence (pathol.) ; Pragmatische Kompetenz (pathol.) ; Communicative competence (pathol.) ; Kommunikative Kompetenz (pathol.) ; Conversational analysis (pathol.) ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English