The phrase "as a valid tool" is correct and usable in written English.
You can use it when discussing the legitimacy or effectiveness of a method, resource, or instrument in a particular context.
Example: "The software has been recognized as a valid tool for improving productivity in remote work environments."
Alternatives: "as an effective resource" or "as a legitimate instrument".
If ecological analyses can be validated by future studies as a valid tool for identifying differences with respect to sexual orientation, we may apply this methodology to monitor the health of sexual minorities, which we cannot do with presently available surveillance tools.
A very close correlation between the visual symptom scores on individual plants and their biomass production was also evident suggesting B uptake as the direct and major cause of reduced plant growth and validating the symptom scores as a valid tool to estimate plant performance.
This study gives further evidence for the validity of the Life-Chart method as a valid tool for the recognition of both manic and depressive episodes.
While he described the stop-and-frisk practice as a "valid tool," he said its increasing use has been "corrosive" to community relations with the police, a development that he said has undermined public safety.
It was recently proposed as a valid tool for constructing cellular structures by providing a compact representation of complex structures.
In animal studies, robots have been recently used as a valid tool for testing a wide spectrum of hypotheses.
It has been established that it is essential that CPGs are evidence-based, so as to provide a valid tool for those caring for patients with cancer.
In both experiences with ELCSA, the authors conclude that using a food security scale, such as ELCSA is a valid tool for assessing household food insecurity in Mexico.
Multivariate statistical techniques such as receptor models offer a valid tool to handle complex data sets and allow to extract information not directly inferable from original data matrix by traditional approach.
This questionnaire is considered as a reliable and a valid tool useful in patient groups with different psychiatric diagnoses [ 34].
The inventory has also proved to be a valid tool as reported in multiple studies, using factor analysis as the tool to identify underlying concepts [ 19, 25, 27- 30].
