Academic accomplishments in light of your life experiences and special circumstances, including but not limited to: disabilities, low family income, first generation to attend college, need to work, disadvantaged social or educational environment, difficult personal and family situations or circumstances, refugee status or veteran status.
Location of your secondary school and residence.
The first quote clearly mentions income as a consideration. Location of your residence is also an indicator of income, one I assume they use to assess whether a student is low or high income relative to their school. I have heard of people deliberately sending their kids to lower-income schools so that they stand out more, and obviously sometimes there are lower-income kids going to school in a high-income neighborhood.
If they applied to multiple UCs then they got multiple readers (it’s not one reader reviewing the application for all campuses, each campus has its own readers). Also, my understanding is that even for each individual campus two readers usually score the application and, if their scores diverge, then it undergoes further review, so there are some checks and balances in place. Maybe that is no longer the case? At any rate, it is not an issue with a single distracted reader causing a student to get declined from multiple campuses. The application undergoes multiple reviews by multiple people.
But that’s not true according to Guy_Rien’s post in the other thread, although your school of course may be different.
But the non-IB kids can’t do most of these classes (they are capped and enrollment by invitation only at my school)
So at least at some IB schools, non-IB kids do not have the opportunity to take the same classes and can’t simply choose to take them as they are by invitation only.
But that’s weighted uncapped GPA, I assume. The UCs also look at unweighted GPA (and weighted and capped), so it possible they would both have an unweighted 4.0 or 3.9 or whatever, and it would not be a full point lower. And even where there is disparity, lots of things could account for that aside from demographics. Intended major, for one thing.