Researchers want the public to test themselves: https://yourmist.streamlit.app/. Selecting true or false against 20 headlines gives the user a set of scores and a “resilience” ranking that compares them to the wider U.S. population. It takes less than two minutes to complete.
The paper
Edit: the article might be misrepresenting the study and its findings, so it’s worth checking the paper itself. (See @realChem 's comment in the thread).
That is such a lazy study it’s pitiful and it does in no way test your ability to discern the veracity of news, so even the full marks I got are useless.
First of all, if you generate fake headlines either test someone’s general knowledge or critical thinking, don’t conflate the two. Secondly, it’s the latter that actually matters the most, so if you build your knowledge based on headlines, you’re already close to the fake news group.