ISSN 0439-755X
CN 11-1911/B
An improved method for differential item functioning detection in cognitive diagnosis models: An application of Wald statistic based on observed information matrix
LIU Yanlou; XIN Tao; LI Lingqing; TIAN Wei; LIU Xiaoxiao
Acta Psychologica Sinica . 2016, (5): 588 -598 .  DOI: 10.3724/SP.J.1041.2016.00588