Analysing a test with packages in R
Gavin Brown · Figshare · 2018
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'.