The phrase "a demonstrated need" is correct and usable in written English.
It can be used when discussing a requirement or necessity that has been clearly shown or proven through evidence or examples.
Example: "The proposal outlines a demonstrated need for improved infrastructure in the community to support its growing population."
Alternatives: "an established need" or "a proven necessity."
We will be able to offer financial aid for accepted students with a demonstrated need.
In 1969, Conlon proposed that the Bureau issue a new two because of a demonstrated need for low-denominational currency.
"I think until there is a demonstrated need in our economy and a plan to address that need, I think it would be irresponsible of Congress to release the additional money," Mr. Boehner said.
The carriers sued in state court claiming that the zoning board had effectively barred them from putting a tower on a site found to be uniquely suited to a demonstrated need for service.
Nothing in this paragraph shall be construed to prohibit schools from specializing in providing specific services for students with a demonstrated need for such services, such as students who need specialized instruction in reading, spelling, or writing.
"There is certainly a demonstrated need for more parking up and down all Metro-North lines," was the milder assessment of James Blair, a retired fund manager from Ossining who is a member of the Metro-North Commuter Council, a group representing riders' interests.
This would encourage the migration of younger workers--if there is a demonstrated need--and discourage that of workers whose contributions are minimal.
There are no limits to which the opposition will not go to demonstrate inhumanity to people with a significantly demonstrated need.
As such, with a clearly demonstrated need for high-quality research in these ages [ 13, 14], this finding negates excuses for poor methodology.
In conclusion, communicating the necessity for CRC screening and the effectiveness of screening tests available to the target population is a clearly demonstrated need.
This gift would be used to help a student with demonstrated need participate in the program.
