Received: 7 May 2020
Accepted: 25 October 2020
First Online: 4 November 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board (IRB) (Beijing Normal University Research Committee, School of Journalism and Communication) at Beijing Normal University. Informed consent was provided by all participants after having read the study information and click “I agree” button to indicate the acceptance of participation.
: Not applicable.
: The authors declare that they have no competing interests.