May 2022

How to run IRT analyses in R

by Philipp Masur
May 13, 2022May 13, 2022
31 Comments
R, rstats, statistics

This post provides an introduction to fitting item response theory (IRT) models in R. From my experience, most scholars in the social sciences have heard about IRT as an alternative to classical test theory (and its methods such as EFA or CFA), but have never really worked with it. I believe that this is unfortunate as it offers a lot of advantages and insights into the validity and reliability of tests and items. In this… Read More »How to run IRT analyses in R

I am an Assistant Professor at the Department of Communication Science at the Vrije Universiteit Amsterdam and Managing Director of the Digital Media and Behavior Lab. My research is concerned with applying socio-psychological and communication theories to study online communication. Particularly, I investigate social influences on social media, privacy and self-disclosure dynamics, and implications for individuals’ well-being. In doing so, I aim to identify and foster knowledge and skills necessary to navigate online environments in a healthy and self-determined way (read more).

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