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. 2022 Aug 3;2022(8):CD015270. doi: 10.1002/14651858.CD015270

Witus 2021.

Study characteristics
Methods 

  • Study design: randomised controlled trial

  • Type of publication: preprint

  • Setting and dates: online Survey Platform, February 25th and 26th, 2021

  • Country: UK

  • Language: English
Interventions Animated YouTube video explaining how COVID‐19 mRNA vaccines work: 

  • Watching the video with a male narrator

  • Watching the video with a female narrator

  • Reading the text of the video transcript

  • No information (control group)
Population 

  • Population: US located Mechanical Turk workers

  • Age: NR

  • Gender: NR

  • Ethnicity: NR

  • Number of participants (recruited/allocated/evaluated): 1632

  • Inclusion criteria: participants must be located in the US 
Outcomes Vaccination intention 
Notes COI: none declared 
Funding: LSW is supported by a Cottrell Scholar Award from the Research Corporation for Science Advancement