SGP v0.0-8.0


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An R Package for the Calculation and Visualization of Student Growth Percentiles.

Functions to calculate student growth percentiles and percentile growth projections/trajectories for students using large scale, longitudinal assessment data. Functions use quantile regression to estimate the conditional density associated with each student's achievement history. Percentile growth projections/trajectories are calculated using the coefficient matrices derived from the quantile regression analyses and specify what percentile growth is required for students to reach future achievement targets.

Functions in SGP

Name Description
combineSGP Combine student data and SGP results
prepareSGP Prepare data for SGP analyses
studentGrowthPercentiles Student Growth Percentiles
sgpData_LONG Longitudinal Student Assessment Data in LONG format
abcSGP Perform 4 step sequence: prepareSGP, analyzeSGP, combineSGP, and summarizeSGP
SGP-package SGP: An R Package for the Calculation and Visualization of Student Growth Percentiles.
summarizeSGP Summarize student scale scores, proficiency levels and student growth percentiles according to user specified summary group variables
studentGrowthProjections Student Growth Projections
viewSummaryGroups View summary and confidence interval groups that will be used in summarizeSGP
analyzeSGP Analyze student data to produce student growth percentiles and student growth projections
sgpData Longitudinal Student Assessment Data
bubblePlot bubblePlot for SGP
stateData State assessment program data including performance level cutscores for large scale state assessments
studentGrowthPlot Create a student growth and achievement chart
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Last month downloads


Date 2011-5-5
Author@R c(person("Damian", "Betebenner", email=""), person("Adam", "Van Iwaarden", email=""))
LazyLoad Yes
LazyData Yes
License CC BY-SA 3.0 US | CC BY-NC-SA 3.0 + file LICENSE
Repository CRAN
Repository/R-Forge/Project sgp
Repository/R-Forge/Revision 125
Date/Publication 2011-05-08 05:45:44
Packaged 2011-05-06 20:47:34 UTC; rforge

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