The phrase "a variety of valid" is correct and usable in written English.
It can be used when discussing multiple acceptable options or forms of something.
Example: "In our research, we found a variety of valid approaches to solving the problem."
Alternatives: "a range of acceptable" or "multiple legitimate".
Public confidence in government started to decline in the 1960's for a variety of valid reasons, including Vietnam, rising crime rates and a seemingly irresistible expansion of the size of the federal government.
"I always fall into the trap of thinking if I'd written it better, surely, surely they would have understood," she said, referring to the young women who were upset by "Goodbye (#2)." ("Morgan's essay is incredibly condescending," one blogger wrote. "It completely fails to recognize that there are a variety of valid reasons younger women might decide to support Obama").
An extensional logic will thus typically feature a variety of valid substitutivity principles.
Per my reply to ukpahonta above, for a variety of valid scientific reasons you can't legitimately do that.
"Our analysis shows that 90% of those who registered are opposed to this giant, inshore industrial project for a variety of valid reasons," said Roy Pointer, chair of the association.
In sum, Proposition 1 lost for a variety of valid reasons.
Thus, for a variety of historically valid, but since superseded, methodological reasons, an appropriately rigorous scrutiny of the ability of gammaretroviral vectors to transduce non-dividing cells had not been previously undertaken since the initial reports indicated lack of infectivity of non-dividing cells by gammaretroviruses [6], [7].
It recognises that Judaism is an inclusive religion with a variety of different but valid expressions.
She supports him for a variety of good and valid political reasons and can overlook his economic rhetoric because she has confidence in his economic advising team, primarily Austan Goolsbee.Full disclosure: I was a student of Glenn Hubbard.
A variety of instruments considered valid for research in low and middle income settings were used.
Students will gather relevant and accurate information from a variety of sources and draw valid inferences from that information.
