>> Importantly, Dartmouth Admissions uses SAT scores within context; a score of 1400 for an applicant from a high school in a lower-income community with lower school-wide test scores is a more significant achievement than a score of 1400 for an applicant from a high school in a higher-income community
Since I encountered a similar approach just three years ago in my son's High School application in the Chicago Public School System I can say this leaves a lot to be desired non low-info,e families. Here's a high-level summary of how it works:
1. Chicago is neighborhoods are assigned one of (if memory serves) four levels, which represent socioeconomic levels.
2. With the thought that the economic level is proportional to school quality (this is more true in most places in the US than other countries, since a big chunk of school budget comes from property taxes, so neighborhoods with low taxes get school with lower budgets) scores from the entrance exams for kids from different levels are boosted by different multipliers.
Now, of course, (2) is a travesty of the US but that's another long discussion. The problem with (1) is that the neighborhood to level assignments are not revised each year. So you can be affluent in a district that has gentrified in the past 2-5 years and your kid will get the low-income boost unfairly.
Additionally some neighborhoods are highly bimodal, eg take Lakeview. This is considered a low-income neighborhood but there are many high-income high rises and single family homes within its borders. Alternately, there are many rental condos in our neighborhood which is the highest income level, so these middle income kids get slammed.
Still another problem is families purposefully gaming the system. We had friends who changed their rental condo during their child's 8th year so they can get a lower-info,e address sin their application. This is widely known and done.
Perhaps a better approach would be to use the family's income rather than communities.
Edit: I had more time to research and found the following, in case somebody is interested:
* What I referred to as the four levels are actually called tiers
* The tiers are actually updated every year, so I was wrong above. Still, the community average criticism stands. See the discussion about the update that was done last Feb here: https://chicagoschooloptions.com/forums/topic/when-are-cps-t...
* You can see the distribution of the tiers from a few years ago on this site: http://cpstiers.opencityapps.org, owners say it's no longer maintained. It seems currently there's no map showing all tiers, you can check only a single address at https://schoolinfo.cps.edu/schoollocator/index.html