Data sgp is an educational database that provides information about student growth in academic achievement. It is updated regularly and it is free for students, teachers, and parents. It is also useful for evaluating the effectiveness of education policies and practices. In addition, it can help in predicting future trends in academic achievement.
The sgpdata package is used to calculate student growth percentiles and projections/trajectories using large scale, longitudinal education assessment data. This can be from standardized tests, portfolios, grading scales and/or other sources. It is an open source software package that was developed by Adam Van Iwaarden, Daniel Aguilar and Michael Kiesling. It is designed to support a wide range of analyses, including comparisons across time periods and evaluations of teacher and leader effectiveness.
SGPs describe how much a student’s performance improved over time, relative to other students with a similar achievement history. The higher the score, the more progress a student made. This is useful for assessing student learning, providing educators and parents with a more accurate picture of how a student is performing in school and whether or not they need additional support. It is also a vital part of teacher and leader key effectiveness systems (TKES and LKES).
sgpData contains anonymized, longitudinal data sets in WIDE format. Each case/row in sgpData represents a single student. Each row contains the student identifier, date of testing, content area, grade level and scale score for the five most recent years of assessments. In addition, the sgpData set sgpData_INSTRUCTOR_NUMBER contains a lookup table that associates a student with their teacher for each test record.
In general, analyzing SGPs using the SGPdata package is fairly straight forward. However, there are some important considerations that must be taken into account, such as the structure of the longitudinal data set and the formatting of the individual variables. For more information, please consult the SGP data analysis vignette. To assist in this process, the SGPdata package installs exemplar WIDE and LONG formatted data sets (sgpData_WIDE and sgpData_LONG, respectively) to assist in setting up your analyses. In addition, you can find more comprehensive documentation on the SGPdata website.