Nearly every educational jurisdiction uses a performance measure of student attainment as the major or only outcome of education. Performance measures are those that compare students with their cohort. Performance measures necessarily aggregate disparate attributes, such as attitude, dispositions, skillsets, ability to perform under stress into a single measure that clouds the truth and secretly privileges confident personality or socially extroverted behaviour and prejudices the opposite. I think a more productive model for reporting on educational attainment that provides a set of disparate measures to separate these would work better, not only for the student, but also for future decisions about study, employment etc. The measures I think useful as a starter could include:
Improvement (over time), skillset (in this field), dispositions (towards work and learning), conceptual level (in this field).