SEAsic

Author: Anne Corinne Huggins-Manley & Douglas Whitaker
Contact: https://cran.r-project.org/web/packages/SEAsic/index.html
Description: SEAsic (score equity assessment summary index computation) is an R package for computing and graphing a variety of indices that quantify an important aspect of test fairness, that of reported score equity. SEAsic allows for efficient calculation and graphing of multiple SEA indices. All indices in Huggins and Penfield (2012) can be calculated and plotted in various ways given a user-provided conversion table. Included are the root expected mean square difference (REMSD; Dorans & Holland, 2000), its group-to-overall counterpart (Yang, 2004), and two conditional counterparts, as well as options for manipulating subpopulation and/or score level weights in all of these indices (see Brennan, 2008). All indices from Kolen and Brennan (2004) are included, such as the pairwise mean difference (MD) and absolute mean difference (MAD) indices with options for equal weights (i.e., ewMD, ewMAD) and conditional counterparts. Multiple indices that locate maximum differences (Dorans & Holland, 2000) are also included.
Analyses: Dimensionality; Factor/Latent Structure; Multidimensional Models
System Requirements: Windows, Mac, Linux
Measurement Model: Classical
License Type: Open-Source (R)
Documentation: Manual, multiple examples