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SGP (version 0.4-5.0)

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

Description

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.

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Version

Install

install.packages('SGP')

Monthly Downloads

1,781

Version

0.4-5.0

License

CC BY-SA 3.0 US | CC BY-NC-SA 3.0 + file LICENSE

Homepage

http://cran.r-project.org/web/packages/SGP/

Maintainer

Damian Betebenner

Last Published

August 18th, 2011

Functions in SGP (0.4-5.0)

Summarize student scale scores, proficiency levels and student growth percentiles according to user specified summary group variables

Analyze student data to produce student growth percentiles and coefficient matrices from a baseline (i.e. multiple cohort) norm group

studentGrowthPercentiles

Student Growth Percentiles

Core bubblePlot function for SGP

bubblePlot_Styles

bubblePlot_Styles providing various uses of the core bubblePlot function

splineMatrix-class

Class "splineMatrix"

Prepare data for SGP analyses

Analyze student data to produce student growth percentiles and student growth projections

baselineSGPshort

Analyze student data to produce student growth percentiles and coefficient matrices from a baseline (i.e. multiple cohort) norm group

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

Combine student data and SGP results

Perform 4 step sequence: prepareSGP, analyzeSGP, combineSGP, and summarizeSGP

studentGrowthProjections

Student Growth Projections

studentGrowthPlot

Create a student growth and achievement chart

growthAchievementPlot

growthAchievementPlot for SGP

State assessment program data including performance level cutscores for large scale state assessments

Longitudinal Student Assessment Data in LONG format

viewSummaryGroups

View summary and confidence interval groups that will be used in summarizeSGP

Visualize data from SGP analyses

Longitudinal Student Assessment Data