%0 Journal Article
%@ 1438-8871
%I JMIR Publications
%V 25
%N 
%P e42528
%T Assessing the Effect of Nonvisual Information Factors in Pandemic-Related Video Communication: Randomized Controlled Between-Subjects Experiment
%A Lungu,Daniel Adrian
%A Røislien,Jo
%A Berg,Siv Hilde
%A Smeets,Ionica
%A Shortt,Marie Therese
%A Thune,Henriette
%A Brønnick,Kolbjørn Kallesten
%+ SHARE – Centre for Resilience in Healthcare, Department of Quality and Health Technology, Faculty of Health Sciences, University of Stavanger, PO Box 8600, Stavanger, 4036, Norway, 47 91532327, daniel.a.lungu@uis.no
%K video communication
%K COVID-19
%K trust
%K comprehension
%K intentions
%K behavior
%K visual
%K pandemic
%K risk
%K communication
%K policy
%K behavior
%K effect
%K video
%K experiment
%D 2023
%7 23.8.2023
%9 Original Paper
%J J Med Internet Res
%G English
%X Background: Videos have been an important medium for providing health and risk communication to the public during the COVID-19 pandemic. Public health officials, health care professionals, and policy makers have used videos to communicate pandemic-related content to large parts of the population. Evidence regarding the outcomes of such communication, along with their determinants, is however limited. Objective: The aim of this study was to test the impact of nonvisual information factors of video communication on 4 outcomes: trust, comprehension, intentions, and behavior. Methods: Twelve short health communication videos related to pandemics were produced and shown to a large sample of participants, applying a randomized controlled between-subjects design. Three factors were included in the creation of the videos: the topic (exponential growth, handwashing, and burden of pandemics on the health care system), the source (expert and nonexpert), and a call to action (present or absent). Participants were randomly assigned to 1 video intervention, and 1194 valid replies were collected. The data were analyzed using factorial ANOVA. Results: The 3 pandemic-related topics did not affect trust, comprehension, intentions, or behavior. Trust was positively influenced by an expert source (2.5%), whereas a nonexpert source instead had a positive effect on the proxy for behavior (5.7%) compared with the expert source. The inclusion of a call to action had a positive effect on both trust (4.1%) and comprehension (15%). Conclusions: Trust and comprehension in pandemic-related video communication can be enhanced by using expert sources and by including a call to action, irrespective of the topic being communicated. Intentions and behavior appear to be affected to a small extent by the 3 factors tested in this study. International Registered Report Identifier (IRRID): RR2-10.2196/34275 
%M 37610820
%R 10.2196/42528
%U https://www.jmir.org/2023/1/e42528
%U https://doi.org/10.2196/42528
%U http://www.ncbi.nlm.nih.gov/pubmed/37610820