The phrase "a study that examined" is correct and usable in written English.
You can use it when referring to research or analysis conducted on a specific topic or subject matter.
Example: "A study that examined the effects of sleep on cognitive performance revealed significant findings."
Alternatives: "a research that investigated" or "an analysis that explored".
The accountants decided that to include it would have skewed the results in a study that examined so few families.
Dr. Berlin said his company recently conducted a study that examined how well consumers followed Advil's label directions.
Marcia Linn, a professor in UC Berkeley's School of Education, co-authored a study that examined gender-science stereotyping across 66 countries.
Communication PhD candidate René Kizilcec is lead author of a study that examined the effectiveness of a psychological strategy on online learners.
Williams and his colleagues recently completed a study that examined the environmental costs of buying roses shipped to England from Holland and of those exported (and sent by air) from Kenya.
In a study that examined student learning, the psychologists Ina Blau and Avner Caspi found that, while face-to-face interactions tended to provide greater satisfaction, in anonymous settings participation and risk-taking flourished.
Bent Flyvbjerg, an Oxford University economist and the lead researcher on a study that examined Rio's Olympic finances, said the actual amount spent on sports venues was most likely $4.6 billion, 51percentt over budget.
A study that examined the relationship between sea surface temperatures in the Pacific and the number of tornadoes in the U.S. found a weak correlation between La Nina and a greater number of tornadoes.
Consider a study that examined the effects of placebos on patients suffering from irritable bowel syndrome — a chronic gastrointestinal disorder that causes constipation and pain.
Men with ED are about 38% more likely to have high blood pressure than those without ED, according to a study that examined the medical records of more than 1.9 million men.
Earlier this year, a study that examined the pill-taking habits of older Americans suggested that seniors are taking more prescription drugs and dietary supplements than in years past.
