Funding for this research was provided by:
Foundation of German Business ([PhD scholarship])
Research Focus “Communication, Media and Politics” of the University of Koblenz-Landau ([Funding of data collection])
Received: 19 August 2019
Accepted: 19 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: Participants consented to their participation in the anonymous survey. Approval by an ethics committee was not necessary.
: Not applicable.
: The authors declare that they have no competing interests.