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SGP (version 0.7-1.0)

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

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

2,114

Version

0.7-1.0

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

October 12th, 2011

Functions in SGP (0.7-1.0)

Prepare data for SGP analyses

studentGrowthProjections

Student Growth Projections

growthAchievementPlot

growthAchievementPlot for SGP

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

Visualize data from SGP analyses

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

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

Output student data and SGP results for a variety of purposes

Longitudinal Student Assessment Data

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

splineMatrix-class

Class "splineMatrix"

Combine student data and SGP results

Longitudinal Student Assessment Data in LONG format

Core bubblePlot function for SGP

studentGrowthPlot_Styles

studentGrowth_Styles providing base templates for the core studentGrowthPlot function

studentGrowthPlot

Create a student growth and achievement chart

bubblePlot_Styles

bubblePlot_Styles providing various uses of the core bubblePlot function

studentGrowthPercentiles

Student Growth Percentiles

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

viewSummaryGroups

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

baselineSGPshort

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

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