Sentence examples for validity is unclear from inspiring English sources

Although toenails are validated biomarkers for mercury and arsenic, their validity is unclear for cadmium and manganese and has been called into question for lead.

While the approach is exact for strictly advective transport in steady-state flow if the reactive properties of the porous medium are uniform, its validity is unclear when local-scale mixing affects the reactive behavior.

Senator Bill Frist, the Tennessee Republican who was just chosen Senate majority leader and who favors a ban on all forms of cloning, called Friday's announcement "disturbing" and added: "While its validity is unclear, it should serve as a chilling reminder that individuals are still trying to clone human beings.

At the current time, the equipment these tests require is not widely available, and their accuracy and validity is unclear, 5 but they can be useful research tools.

Points were considered only within the distribution range normally cited for Chile and Argentina [ 4, 5], since records of the southern area are controversial and their validity is unclear [ 41, 43].

Although our case definition has face validity, it is unclear how well the case definition may perform in more general populations including those with existing diagnoses of diabetes mellitus and in adults.

However, without obtaining substantive validity evidence, it is unclear whether the students used test-taking skills to solve the problem (such as noticing that the correct option contained more scientific jargon than the other options), or whether they actually engaged in the expected cognitive processes.

Measurement of oxytocin concentrations in saliva are sometimes used to approximate peripheral levels of oxytocin; however, the validity of this approach is unclear.

– Libyan Islamic/Sharia Law is being used to consider the validity of domains, which is unclear and obscure in terms of being able to know what is allowed and what isn't.

► The validity of this distinction is unclear.

However, the validity of this finding is unclear, because histological confirmation of osteomyelitis was not done [ 2].