Hardouin, Jean-Benoit; Bonnaud-Antignac, Angelique; … - In: Stata Journal 11 (2011) 1, pp. 30-51
Item response theory is a set of models and methods allowing for the analysis of binary or ordinal variables (items) that are influenced by a latent variable or latent trait- that is, a variable that cannot be measured directly. The theory was originally developed in educational assessment but...