Doebler, Anna; Doebler, Philipp; Holling, Heinz - In: Psychometrika 78 (2013) 1, pp. 98-115
The common way to calculate confidence intervals for item response theory models is to assume that the standardized maximum likelihood estimator for the person parameter θ is normally distributed. However, this approximation is often inadequate for short and medium test lengths. As a result,...