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.

News

  • 0.0.4

    • For functions related to the percentage point gap method, add prop_sub_0 and prop_sub_1 parameters to account for scenarios where the proportion contains 0 or 1 to not lead to a zero MOE when use_prop_in_moe=TRUE. Also, add warning messages when this happens.
  • 0.0.3

  • Document definition of di_indicator in di_ppg
  • Change pct_hi < reference to pct_hi <= reference in determining DI to be consistent with the methods document from the Chancellor's office

Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.

install.packages("DisImpact")

0.0.4 by Vinh Nguyen, 5 months ago


https://github.com/vinhdizzo/DisImpact


Report a bug at https://github.com/vinhdizzo/DisImpact/issues


Browse source code at https://github.com/cran/DisImpact


Authors: Vinh Nguyen [aut, cre]


Documentation:   PDF Manual  


GPL-3 license


Imports magrittr, dplyr, rlang

Suggests knitr, rmarkdown


See at CRAN