“…We developed items inspired by existing measures relevant for the assessment of single constructs embedded in the interpersonal communication process model. Thus, we used: (a) 10 items inspired by the German version of the Organizational Communication Questionnaire (Roberts & O'Reilly, 1974) named "Fragebogen zur Erfassung der Kommunikation in Organisationen" (KOMMINO; Sperka & Rózsa, 2007); (b) seven items inspired by the Communicator Competence Questionnaire (Monge, Bachman, Dillard, & Eisenberg, 1982); (c) five items inspired by the self-report version of the Nonverbal Immediacy Scale (Richmond, McCroskey, & Johnson, 2003); (d) four items inspired by the McCroskey Shyness Scale (McCroskey & Richmond, 1982); and (e) one item inspired by the Personal Report of Communication Fear (McCroskey, Andersen, Richmond, & Wheeless, 1981). In addition, we developed 18 new items.…”