The phrase "a valid and valuable" is correct and usable in written English.
It can be used when describing something that is both legitimate and of worth or importance.
Example: "The research provided a valid and valuable insight into consumer behavior."
Alternatives: "a legitimate and significant" or "a credible and important".
Assessment of this platform using dye-swap experiments, evaluation of control probe signals, and qPCR validation of results established this array as a valid and valuable tool for functional genomics studies.
To this end, it would be helpful if the current repository infrastructure were also considered as a valid and valuable mechanism to meet Plan S aims.
During a follow-up interview on Radio 4's Today programme, he seemed to suggest that apprenticeships are a second choice for people whose background prevents them from taking the "privileged" route through university, rather than a valid and valuable form of education and training in themselves.
It stems, in part, from a valid and valuable feeling: that second-generation immigrants are entitled to all the rights and opportunities of other citizens (though in Germany, whose Turkish immigrants have historically not been afforded equal rights, the situation is more complex).
I believe that if hormesis achieves widespread recognition as a valid and valuable interpretation of dose-response results, we would expect an increase in the breadth of evaluations of the dose-response relationship which could be of great value in hazard and risk assessment as well as in future approaches to drug development and/or chemotherapeutics.
The FDA regards PROs as a valid and valuable source of data.
While BMI is practical for assessing adiposity in children, the AI combines a wider range of data related to adiposity than BMI alone and appears both valid and valuable as a research tool for studies of childhood adiposity.
The view is a lot different, but no less valid and valuable, at ankle-biter level.
It means that you have a different approach to life that is just as valid and valuable.
But it is valid and valuable.
His principal compass — maybe his only one — is the most valid and valuable of all: what tastes great.
