Carefully read "The Relationship Between Teacher Performance Evaluation Scores and Student Achievement: Evidence from Cincinnati" from Peabody Journal of Education by Milanowski.Then, provide succinct answers to the following questions. To help you, Empirical Bayes' Estimation is one method to estimate teacher "valued-added" in terms of student achievement. Residuals are the difference between the observed value of a variable and the predicted value of a variable. In the Milanowski study, EB Intercept residuals is used by the author as a measure of student learning.

1. Were any limitations described in the study?