Definition

i think you could make more of the 'performance' bit of the definition - this is something which suggest that standards-based assessment is about what the learner can do but does not attempt to make definitive statement about something innate such as 'ability' (as did the old IQ tests or psych tests).

Plus I think the concept of 'evidence' should be unpacked a bit - eg different types such as a practical performance as opposed to knowledge, real-world evidence (eg WBL).