COVID-19 Clinical Trial
Official title:
Communicating Uncertainty About the Effects of Wearing Glasses to Reduce the Chance of Getting COVID (Corona Virus Disease): Protocol for a Randomized Trial
Randomized trial testing 6 forms of a communication summarizing the results of a recent study (about the effects of wearing glasses on reducing covid infection risk). The goal of the trial is to test the effect of different language options to describe uncertainty, and of including the margin of error around the main result.
The study is designed as a proof-of-concept exercise to develop and test a communication meant to summarize the results of a recent randomized trial examining the effects of wearing glasses on the chance of developing COVID-19. The objectives of the randomized trial are: - To compare the effects of three ways of communicating the overall uncertainty of the effects of wearing glasses to reduce the chance of getting COVID and - To compare the effects of including the margin of error (confidence interval) compared to not including it. Researchers will conduct an online, parallel group, individually randomized, pragmatic trial using a 3x2 factorial design, ie, 3 uncertainly language options (GRADE language, colloquial language or none 2 options for the statistical margin of error for the main results (margin of error language or none). ;
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