The hierarchical regression models were used to create expected achievement scores. The information for each school is presented on
Field 2: The Statistical Model. These expected scores, based on school context derived from the entire set of state achievement tests in school year
2000-2001, provide us with guidelines about what we can statistically expect for individual school performance. Standard errors were computed in addition to the specific point estimates for the expected scores. The point estimates combined with the errors generated a band within which we would expect individual school performance to lie. The band, shown in
Figure 2 as the sample range, shows the 95% confidence interval for the predicted score. The larger the width of the confidence band the less likely the school is in representing a typical Rhode Island school. Conversely, the narrower the band the more representative the school.