"I think the closest we’d be able to get to this is maybe smaller, more granular standardized test that do a better job of testing multiple specific dimensions

"I think the closest we’d be able to get to this is maybe smaller, more granular standardized test that do a better job of testing multiple specific dimensions over an academic career vs a big bang at the end." This is the heart of the concept, yes. We should be attempting to make in-classroom assessments as trustable as standardized tests which would allow them to continuously implemented during instruction. The quantity of data will provide a significantly more robust representation of a student's abilities today, and over time, compared to the infrequent snapshots of the ACT/SAT/etc.