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The phrase "about the validity and" is correct and usable in written English.
It can be used when discussing topics related to the legitimacy or soundness of a particular argument, claim, or concept.
Example: "The researchers conducted a thorough analysis about the validity and reliability of their findings."
Alternatives: "regarding the legitimacy and" or "concerning the soundness and".
Exact(58)
Could this be saying something about the validity and value of a liberal philosophy?
"If this was a proceeding playing out in the judicial system, there would be many questions raised about the validity and credibility of Bigbie's statement about Roberts".
He said on the Senate floor in 2003: "I believe there are legitimate disputes about the validity and extent of global warming … Carbon dioxide does not hurt you.
As Dankworth put it: "To say that jazz was divided about the validity and desirability of bebop would be seriously understating the case.
While Google's decisions will seem reasonable enough to most, in the absence of real information about how representative these are, the arguments about the validity and application of the RTBF are impossible to evaluate with rigour.
The collapse of Herman Cain's campaign, despite the assignment of a Times reporter to it, ought to be sufficient to chasten Mr. Stevenson about the validity and relevance of his unstated basis for assignments.
So Mr. Feinberg has quietly hired one of the country's foremost scholars on torts — he declined to provide a name — to write a memorandum about the validity and value of proximity claims.
People looked worried – perhaps because everything they'd been taught to believe about the validity and sanctity of the Euro is being pulled out from under them, and by one of the smallest member states.
People started arguing about the validity and value of design patents a long time ago and they haven't stopped yet.
Similar(2)
Although many studies showed the effectiveness of self-assessment and peer-assessment (eg Andrade et al. 2010; Chen 2008; Brown 2005; Topping 2010; Pope 2001), some questions remain about the validity, reliability, and practicality of these assessment types (Ross 2006).
From a psychometric perspective these problems would raise questions about the validity, reliability and responsiveness of the scores.
More suggestions(15)
about the order and
about the applicability and
about the advisability and
about the accuracy and
about the term and
about the veracity and
about the relevance and
about the merit and
about the rationale and
about the effectiveness and
about the adequacy and
about the authenticity and
about the merits and
about the valuable and
about the circus and
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com