- Low socioeconomic composition (SEC) schools have comparatively lower levels of attainment and achievement than high SEC schools. Low SEC schools are less funding, fewer facilities, and greater instances of misbehavior. Also, students at low SEC schools were 2.67 times more likely to be Black or Hispanic.
- A one standard deviation increase in high school SEC increased the odds of graduation as well as the odds of enrollment at a 2-year or 4-year college. Attainment outcomes are mediated by student background, school academic environment, and peer influences. Models indicate that the association between SEC and attainment is due more to peer influences, which tend to be negative in low SEC settings.
- The associations between SES and/or ethnic background and attainment do not vary across the sample of schools for outcomes.