A comparison of methods to address item non-response when testing for differential item functioning in multidimensional patient-reported outcome measures.
Olawale F AyilaraTolulope T SajobiRuth BarclayEric BohmMohammad Jafari JozaniLisa M LixPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2022)
The NNMF method demonstrated comparable performance to commonly-used non-response methods. This computationally-efficient method represents a promising approach to address item-level non-response when testing for DIF.