I think several non-boarding school posters have found this thread, so I will emphasize that Naviance for boarding schools should be considered complete and accurate. During College Info Weekend at Choate, there was a How to Use Naviance session, and we were told that every single student’s data is in there. Where self-reporting left holes, the CC office filled them in as they know every senior’s GPA and test stats, where they applied, and where they matriculated. They don’t need to rely on the students to complete the database, and it is critical to advising and the school’s institutional capital that the database be complete and accurate. You can also rely on your child’s GC to have access to the unvarnished data and back stories for any questions you have.
@gardenstategal makes an important point that each school determines what the user interface presents to its population, so not everyone here will see exactly the same options, graphs, etc.
For our son, Naviance was a crystal ball.