A new study, which actually describes three separate ones reinforcing the same conclusion, finds that students become more motivated to learn science if they are told about famous scientists who supposedly succeeded more from their effort than from their natural talents.
You can read about it at Not All Scientists Are Equal: Role Aspirants Influence Role Modeling Outcomes in STEM, and it is NOT behind a paywall.
I’m adding it to:
Best Posts On “Motivating” Students
The Best Resources On Helping Our Students Develop A “Growth Mindset.”
You should also be able to find similar studies on those lists – same findings, though different subjects, like: