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).
On the tail end of the millennial generation and I scored 19/20. I think I realised what the tells were and went off that. I ended up classifying a real story as fake so I leaned slightly more on the sceptical side.