Whether this kind of validation can prove that a test has meaning will hinge on what you feel it means for a test to have meaning.
In that case we should probably taboo “meaning” (in this context) and talk directly about whatever it is we want a test to do — make clinically useful predictions, carve reality along its natural joints, etc.
In that case we should probably taboo “meaning” (in this context) and talk directly about whatever it is we want a test to do — make clinically useful predictions, carve reality along its natural joints, etc.