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difNLR  

DIF and DDF Detection by Non-Linear Regression Models
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("difNLR", "1.5.2-2")



Attach the package and use:
library("difNLR")
Maintained by
Adela Hladka
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2016-06-21
Latest Update: 2025-06-30
Description:
Detection of differential item functioning (DIF) among dichotomously scored items and differential distractor functioning (DDF) among unscored items with non-linear regression procedures based on generalized logistic regression models (Hladka & Martinkova, 2020, ).
How to cite:
Adela Hladka (2016). difNLR: DIF and DDF Detection by Non-Linear Regression Models. R package version 1.5.2-2, https://cran.r-project.org/web/packages/difNLR. Accessed 05 Jun. 2026.
Previous versions and publish date:
0.1.0 (2016-06-21 08:36), 0.2.0 (2016-11-09 18:28), 1.0.0 (2017-01-24 10:17), 1.0.2 (2017-06-06 17:55), 1.0.3 (2017-06-17 02:10), 1.1.0 (2017-08-22 16:06), 1.1.1 (2017-08-29 17:10), 1.2.1 (2018-03-05 11:26), 1.2.2 (2018-05-04 14:42), 1.3.0 (2019-08-20 14:10), 1.3.1 (2020-01-27 12:30), 1.3.2 (2020-01-28 12:30), 1.3.3 (2020-05-04 17:50), 1.3.5 (2020-08-24 15:00), 1.3.7 (2021-01-07 22:30), 1.4.1 (2022-04-18 16:24), 1.4.2-1 (2023-05-03 12:50), 1.5.0 (2024-12-19 19:10), 1.5.1-1 (2025-03-03 19:00), 1.5.1-4 (2025-06-30 18:40)
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