Calculates Disproportionate Impact When Binary Success Data are Disaggregated by Subgroups

Implements methods for calculating disproportionate impact: the percentage point gap, proportionality index, and the 80% index. California Community Colleges Chancellor's Office (2017). Percentage Point Gap Method. < http://extranet.cccco.edu/Portals/1/TRIS/Research/Analysis/PercentagePointGapMethod2017.pdf>. California Community Colleges Chancellor's Office (2014). Guidelines for Measuring Disproportionate Impact in Equity Plans. < http://extranet.cccco.edu/Portals/1/TRIS/Research/Accountability/GUIDELINES%20FOR%20MEASURING%20DISPROPORTIONATE%20IMPACT%20IN%20EQUITY%20PLANS.pdf>.

The DisImpact R package contains functions that help in determining Disproportionate Impact (DI) based on the following methodologies:

1. Percentage Point Gap (PPG) method,
2. Proportionality Index method (method #1 in reference), and
3. 80% Index (method #2 in reference).

Install Package

# From CRAN
## install.packages('DisImpact')
 
# From github (Development)
## devtools::install_github('vinhdizzo/DisImpact')

Tutorial

A vignette on how to use the package can be found here.