Note: YouGov showed U.S. adult citizens a randomized set of 20 headlines — 10 of which were real headlines and 10 of which were fake — and asked people to say whether they believed each headline was real or fake. This survey design comes from the Misinformation Susceptibility Test (https://doi.org/10.3758/s13428-023-02124-2). Recreational hours online daily are based on responses to the question, "On average, how much recreational time (non-work) do you spend online per day?"