"do studies" is correct in written English.
You can use it when referring to a specific type of research or investigation. For example: "I am interested in doing studies on the impact of technology on society."
When you do studies across cultures you find an enormous stability.
Much of the evidence is old because it's getting hard to do studies.
And those who do, studies show, are likely to be less impaired.
We have organizations like the United States Geological Survey that do studies.
Seldom do studies apply cumulative residual (CURE) analysis as a tool for model evaluation.
One approach is to do studies of the ways in which use of a drug might reduce hospital stays.
"Rarely do studies take into account how various stages in a population prey upon each other," Dr. Powell said.
And sometimes they do, studies suggest — especially in life-or-death crises like 9/11 and the Bosnian war.
While at Project Zero, I began to do studies of children's artistic development.
Sedlmeier, P. & Gigerenzer, G. Do studies of statistical power have an effect on the power of studies?
If they do, studies show that the media's spin may matter most in changing opinions.
