What is Data SGP?

data sgp

Data sgp is an educational database that provides information about student growth in academic achievement. It is updated regularly and can be accessed free of charge for students, teachers, and parents. It can also help to predict future trends in student performance.

It is important for families and teachers to understand the meaning of student growth percentiles (SGP). The calculations behind these percentiles can be complex, but they can be summarized in terms that are familiar to most people – percentile rankings of student assessments compared with those of their academic peers. SGPs can help to identify underperforming or exemplary students, and provide valuable information that is useful in planning curriculum, instruction, and school improvement.

The SGP package includes four exemplar data sets – sgpData, sgpData_LONG, sgptData_LONG, and sgpData_INSTRUCTOR_NUMBER – that allow you to see how the higher level functions studentGrowthPercentiles and studentGrowthProjections work with real data. sgpData is an anonymized panel data set with 5 years of annual vertically scaled assessment data. Each case/row in sgpData represents a unique student, and each column in the data represents a distinct assessment score occurrence for that student. The sgpData_INSTRUCTOR_NUMBER data set contains teacher-instructor lookup tables allowing you to identify the instructors associated with each test record.

There are a few variations in how you can run SGP analyses, and the choice depends on your goals and resources. For simple demonstrations, you can use the exemplar WIDE data set sgpData, and for operational analyses we recommend using LONG formatted data. The SGP package also contains wrapper functions abcSGP and updateSGP that simplify the steps required to conduct these analyses, making them easier to use for operational analyses.

SGP analyses can be conducted in two ways – through lower level functions like studentGrowthPercentiles and through higher level function like abcSGP and updateSGP. In most cases, both approaches are conducted simultaneously in operational analyses. However, if you are managing multiple SGP analyses for a large number of schools, it is often easier to use the higher level functions rather than individual studentGrowthPercentiles and individual studentGrowthProjections.