Meijer, Rob R.; Tendeiro, Jorge N. - In: Journal of Educational and Behavioral Statistics 37 (2012) 6, pp. 758-766
We extend a recent didactic by Magis, Raîche, and Béland on the use of the lz and lz * person-fit statistics. We discuss a number of possibly confusing details and show that it is important to first investigate item response theory model fit before assessing person fit. Furthermore, it is...