The phrase "a study that asserted" is correct and usable in written English.
You can use it when referring to research or findings that claim or state a particular point or conclusion.
Example: "The study that asserted a link between diet and mental health has sparked further research in the field."
Alternatives: "a study that claimed" or "a study that stated".
[Page C10.] Lighter Cars May Cost Lives Federal auto regulators released a study that asserts that reducing vehicle weights would have a deadly effect over all.
A study that asserts that 401 k)s provide greater retirement security for teachers cannot ignore the difference between a guaranteed monthly benefit and a risky self-directed investment account.
They discredited an outrageously racist 1925 Army War College study that asserted that blacks lacked the intelligence, ambition and courage to serve in combat.
7. Natasha Lomas wrote about a new study that asserts that a large majority of web users are not happy, and feel powerless to stop their data being harvested and used by marketers.
It submitted a study it commissioned that asserted that far more savings in health care costs — about $58 billion — could be generated if people simply cut 100 calories from their daily diets than if they consumed less salt.
Although BMI is one of the most important factors resulting in GGT elevation [ 1], several previous studies that have asserted the protective effect of coffee on the GGT did not consider BMI in their estimations [ 21].
Attending to ethnographic refusal in TLU studies inspires a more culturally appropriate methodology that asserts Indigenous sovereignty of lands identified for resource extraction in Canada and worldwide.
C1 Study on Vehicle Safety Federal auto regulators released a study asserting that reducing vehicle weights would increase highway fatalities, but that lives could be saved if the largest S.U.V.'s were lighter.
The U.S. Department of Energy (DOE) will soon release a study asserting that wind and solar energy are undermining the electricity grid and that only fossil fuel and nuclear plants can assure the grid's reliability.
That study asserted that opening new regions to drilling and taking other steps that were also proposed in Mr. Perry's speech would create an additional one million jobs in seven years.
