Many independent schools have smaller enrollments since the families participating tend to self-select a bit more. Classroom space is often more limited, and school administrators typically have the power to decline admission to certain people once they’ve met their target enrollment numbers. As a result many private institutes are able to offer a small community atmosphere that allows for a lower student-to-teacher ratio. With smaller class sizes, teachers are often able to focus more attention on individual students, and have more time to get to know students better. This can lead to better test scores and overall academic performance. Classmates may also get a chance to form more intimate bonds.