Yes does outstanding mean a high depth of knowledge in one area, does it mean a high breadth of knowledge in many different areas? Does it mean a high potential to learn (memory/metacognition skills)? Does it mean comfort with high levels of abstraction? All of these would require different tests.

Or what even is "success?" Isn't that what garners prestige for the school? Do these tests determine your soft skills? Your ability to network? Handle different stressed environments? How you can manage people?