The phrase "a valid approach to" is correct and usable in written English.
You can use it when discussing methods or strategies that are acceptable or effective in a particular context.
Example: "Implementing regular feedback sessions is a valid approach to improving team communication."
Alternatives: "an acceptable method for" or "a legitimate strategy for".
Evolutionary Algorithms seem a valid approach to the optimization of non-linear problems.
A self-fulfilling prophecy that suggests "fake it 'til you make it" is a valid approach to "becoming" an alpha male, and therefore propagate the idea.
Justice Stevens wrote for the majority and Chief Justice Rehnquist dissented on the ground that an Ohio village's permit requirement was a valid approach to crime control.
Just as Lobello has found a deeply meaningful path to atonement, a growing number of veterans have found antiwar activism to be a valid approach to healing.
Specifically inhibiting Akt activity may be a valid approach to treat cancer and increase the efficacy of chemotherapy.
At times he seemed intent on bringing lightness and clarity to the music, a valid approach to a score that has elements of Italianate lyricism.
It is proposed that the data driven approach is a valid approach to understanding and modeling the physical phenomena of Near Earth Space.
The impregnation of graphite grains with pre-synthesised AuNPs constitutes a valid approach to stably fix a high amount of AuNPs in such an inorganic matrix.
As a consequence, for this kind of DCBPy emitter, modifying the connected bridge between D and A units is a valid approach to improve their TADF performances.
The analysis procedure applied in this study can constitute a valid approach to determine a priori the behaviors of membrane materials.
Life Cycle Cost Analysis (LCCA) is a valid approach to estimate the total intervention and repair costs of a structure over time.
