The phrase "are often validated" is correct and usable in written English.
You can use it when discussing the confirmation or support of a statement, theory, or belief in various contexts, such as academic writing or discussions.
Example: "The findings of the study are often validated by subsequent research, reinforcing the original conclusions."
Alternatives: "are frequently confirmed" or "are commonly supported".
But even though the primary purpose of distributed hydrological models is to reproduce river discharge and water fluxes in the entire catchment, they are often validated using only the observed river discharge at the basin outlet for comparisons.
In general, statistical models are often validated for specific area types in a global manner, e.g., a single parameter setup is used in a city area.
Concept inventory questions are often validated with student interviews (e.g., Hartley et al., 2011).
miRNA targets are often validated using a modified 5'RACE technique to detect the products of miRNA-mediated cleavage [ 19].
These are often validated in perioperative conditions but may sometimes be less reliable in more severe patients.
The equilibrium and kinetic models are often validated on the basis of coefficient of regression (R ≥ 0.99) of the experimental data.
While previously suggested controllers were often validated for the strongly simplified case of sitting or lying subjects, we demonstrate the effectiveness of the proposed approach in experimental trials with walking drop foot patients.
For example a disease specific HRQL instrument is often validated by using a generic instrument.
Protein A chromatography is also capable of removing modest levels of viruses and is often validated for viral clearance.
Conversely, the clinical variables do not necessarily need to be selected as they are fewer (q = 5 − 10) and were often validated in many large studies.
Self reported sexual behavior is often "validated" through consistency analyses, wherein respondents' answers to the same questions at multiple time points are compared.
