Received: 27 April 2018
Accepted: 28 May 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: The study complied with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. At all time, participation was voluntary, could be stopped at any time, and there was at no point any personally identifiable information collected or stored, i.e. the study was constructed in such a way that participants could not be identified (no IP address was registered). The study was exempt from ethical review by Norwegian regulations (for more information please see ExternalRef removed) as the study was conducted prior to the new EU GDPR (valid 25.5.2018).Although parts of the individual studies could be for some be seen lengthy, questions and instruments included in the study were not considered harmful or in danger of causing distress among participants. Participants were informed about the objectives of the study and informed consent was obtained from all participants on a separate page of the online survey (participants had to tick a box), before proceeding to the response sections of the study.
: Not applicable.
: The authors declare that they have no competing interests.