Language testing ; Evaluation criterion (language testing) ; ESP; English for academic purposes; EAP ; Feedback (language teaching) ; Rückmeldung (Sprachunterricht) ; Lehrerkommentar; Teacher's comment; Correction (in language teaching) ; Health care; Gesundheitswesen; Medicine (technical language) ; Rasch model ; Zweitspracherwerb (Textproduktion) ; Second language acquisition (text production) ; Text production (second language acquisition) ; Evaluation criterion (text.) ; English