The phrase "a wide range of studies" is correct and usable in written English.
It can be used to refer to a broad range of research or topics. For example: "The professor's research covers a wide range of studies, from physics to psychology."
A wide range of studies have examined evidence of "secondary trauma" in the children of Holocaust survivors, the wives of Vietnam veterans, and, more informally, in the families of U.S. veterans who've faced P.T.S.D. after deployments to Iraq and Afghanistan.
The creation and dissemination of such a wide range of studies requires the GAO to have a staff of experts in many fields, including analysts, information technology specialists, financial auditors, economists, attorneys, and communication analysts.
To that end, Dr. Niedenthal and her colleagues have surveyed a wide range of studies, from brain scans to cultural observations, to build a new scientific model of the smile.
In Perú, exceptional preservation permits a wide range of studies of the archaeological record.
These two concepts can also be found in a wide range of studies across the whole corpus.
This asymptotic independence facilitates a wide range of studies involving the total interference and the maximum signal strength.
The apparent critical role of DNA has prompted the initiation of a wide range of studies of drug DNA interactions.
The data from the Bulletin of the International Seismological Centre (ISC) have always been and still remain in demand for a wide range of studies in Geosciences.
For effective risk assessment and risk governance it is necessary to take into account a wide range of studies in different scientific fields.
A wide range of studies in train scheduling problem have used branch and bound (B& B) technique to solve this problem.
Among the common acute treatments that are used for aborting migraine, different levels of evidence have been provided by a wide range of studies.
