Data sgp is an educational tool that provides educators and parents with data about their child’s progress and achievement over time. The information provided by this tool can help teachers and school districts make informed decisions about student learning and academic progress. It can also help inform instructional practices that are most effective for students. However, it is important to remember that data sgp is only one piece of the puzzle when it comes to measuring student learning and achievement.
The data sgp tool uses longitudinal data to produce statistical growth plots (SGP). A SGP is an estimated percentile rank of a student’s current test score relative to students with similar prior test scores (their academic peers). As a result, a SGP can provide more accurate and meaningful measures of student performance than unadjusted test scores alone. Furthermore, a SGP can describe a student’s performance in terms of percentageile ranks that are familiar to most teachers and parents.
SGP analyses use a statistical method called quantile regression to estimate a student’s growth. A student’s “academic peers” are those in the same grade, assessment subject and who have had statistically similar previous test scores. Hence, the growth percentile of a student indicates how much they have grown in comparison to their academic peers.
In order to run SGP analyses, users must have access to a computer running the free and open source software R. There are a number of resources available to help people get started with R, including online tutorials and books. In addition, there is a wiki on the CRAN website that contains documentation on how to use the SGP package.
This wiki is a collaborative effort to document the steps involved in using the SGP package. It is intended to be used by anyone who is interested in using the SGP package, or in developing their own tools and extensions.
A SGP report is generated for each student in the system who has a valid student record. It includes a graph of the student’s progress over time, and a list of the SGPs that have been calculated for the student. The report can be downloaded for printing, or for further analysis by an individual user.
The sgpData data set is an anonymized, panel data set that contains 5 years of annual, vertically scaled, assessment data in WIDE format. The first column of sgpData, ID, provides the unique student identifier and the next 5 columns, GRADE_2013, GRADE_2014, GRADE_2015, GRADE_2016 and GRADE_2017, provide the grade level associated with each of the assessments for which the student has provided data. This exemplar dataset models the format of data that can be used with the lower level studentGrowthPercentiles and studentGrowthProjections functions. For more detailed documentation on using sgpData, please consult the SGP data analysis vignette.