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PP  

Person Parameter Estimation
View on CRAN: Click here


Download and install PP package within the R console
Install from CRAN:
install.packages("PP")

Install from Github:
library("remotes")
install_github("cran/PP")

Install by package version:
library("remotes")
install_version("PP", "0.6.4-1")



Attach the package and use:
library("PP")
Maintained by
Jan Steinfeld
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2011-09-10
Latest Update: 2021-05-27
Description:
The PP package includes estimation of (MLE, WLE, MAP, EAP, ROBUST) person parameters for the 1,2,3,4-PL model and the GPCM (generalized partial credit model). The parameters are estimated under the assumption that the item parameters are known and fixed. The package is useful e.g. in the case that items from an item pool / item bank with known item parameters are administered to a new population of test-takers and an ability estimation for every test-taker is needed.
How to cite:
Jan Steinfeld (2011). PP: Person Parameter Estimation. R package version 0.6.4-1, https://cran.r-project.org/web/packages/PP. Accessed 26 Oct. 2026.
Previous versions and publish date:
(2026-10-14 23:52), 0.1 (2011-09-10 11:09), 0.2-1 (2013-12-29 17:46), 0.2 (2012-06-22 12:37), 0.5.3 (2014-09-04 20:43), 0.5 (2014-08-30 16:14), 0.6.1 (2017-05-13 00:26), 0.6.2 (2019-04-07 10:42), 0.6.3-11 (2021-05-27 13:10), 0.6.4-1 (2026-04-21 15:22)
Other packages that cited PP R package
View PP citation profile
Other R packages that PP depends, imports, suggests or enhances
Complete documentation for PP
Functions, R codes and Examples using the PP R package
Some associated functions: Jkpp . PP . PP_4pl . PP_gpcm . PPall . PPass . PV . findmodel . fourpl_df . pfit . pp_amt . sim_4pl . sim_gpcm . 
Some associated R codes: Infit.R . Infitpoly.R . JKpp.R . Outfit.R . Outfitpoly.R . PP.R . PP_4pl.R . PP_gpcm.R . PPall.R . PPass.R . PV.R . Pfit.R . RcppExports.R . checkINP.R . dataRd.R . eap.R . findmodel.R . jackknife.R . lz.R . lzstar.R . make_dup.R . pkg_start.R . prints.R . quadIT.R . sim_gpcm.R . stdrdize_hist.R .  Full PP package functions and examples
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