Analysing a test with packages in R
journal contributionposted on 28.08.2018 by Gavin Brown
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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'.