I fear that I have created some confusion, so sorry! The Outcome Measures study guide indicates in the purpose column that the MABC-2 is a discriminative measure, but I see now that I inadvertently put that it is also criterion-referenced in the Administration column (which is an error). In the administration column, it should indicate that it is norm-referenced (because items were developed using a normative sample of children). The test is definitely a norm-referenced, discriminative measure by design. If a therapist chooses to use the test for multiple administrations over time to measure change, they would be using it as an evaluative measure, although that does not mean that the tool becomes criterion-referenced (it remains norm-referenced).
I apologize for the confusion and will correct the study guide!