Skip to content
SC

Seung W. Choi

4 packages On CRAN since Mar 2009 (17 years) · last active 12 months ago 0000-0003-4777-5420

Downloads

1.2K

Last 30 days

6.2K

Last 90 days

29.1K

Last year

Average trend: -53.4% (30d vs prior 30d)

Top Packages by Downloads

lordif
476
PROsetta
238
maat
233

Portfolio Check Status

Aggregate CRAN check results across 4 maintained packages.

52

OK

Recent Activity

PROsetta updated v0.4.2 Aug 17, 2025

Linking Patient-Reported Outcomes Measures

maat updated v1.1.1 Aug 17, 2025

Multiple Administrations Adaptive Testing

lordif updated v0.4.2 Jan 8, 2025

Logistic Ordinal Regression Differential Item Functioning using IRT

TestDesign updated v1.7.0 Aug 21, 2024

Optimal Test Design Approach to Fixed and Adaptive Test Construction

TestDesign updated v1.6.1 Mar 30, 2024

Optimal Test Design Approach to Fixed and Adaptive Test Construction

PROsetta updated v0.4.1 Feb 2, 2023

Linking Patient-Reported Outcomes Measures

TestDesign updated v1.5.1 Jan 29, 2023

Optimal Test Design Approach to Fixed and Adaptive Test Construction

TestDesign updated v1.4.0 Dec 16, 2022

Optimal Test Design Approach to Fixed and Adaptive Test Construction

TestDesign updated v1.3.4 Jul 21, 2022

Optimal Test Design Approach to Fixed and Adaptive Test Construction

maat updated v1.1.0 May 17, 2022

Multiple Administrations Adaptive Testing

Maintained Packages

4 packages

Package Version
lordif 0.4.2
TestDesign 1.7.0
PROsetta 0.4.2
maat 1.1.1

Privacy choices

These apply to this browser and are stored on this device only. Nothing about your choice is sent to us.

Read the privacy policy