An automated feedback system based on adaptive testing: a case study

 The development of the CAT application that was the subject of this study has been reported by Lilley and colleagues (Lilley et al. 2004; 2005).  The application comprised a graphical user interface an adaptive algorithm based on the Three-Parameter Logistic Model from Item Response Theory (Lord 1980; Hambleton 1991; Wainer 2000) and a database of questions.