LTM Package in R.docx (175.55 kB)
Analysing a test with packages in R
journal contributionposted on 2018-08-28, 08:40 authored by Gavin T. L. BrownGavin T. L. Brown
This tutorial is created for presentation at the 2018 EARLI SIG 1 summer school in Helsinki, Finland (August 27-28). It provides step by step instruction in using R packages to analyse a dichotomously scored test within Classical Test and Item Response Theories. Packages used include 'psych' and 'ltm'.