Differential item functioning between English, German, and Spanish PROMIS® physical function ceiling items

Constantin Yves Plessen, Felix Fischer, Claudia Hartmann, Gregor Liegl, Ben Schalet, Aaron J. Kaat, Rodrigo Pesantez, Alexander Joeris, Marilyn Heng, Matthias Rose, AOBERT Consortium, Peter Augat (Study group member)

Research output: Contribution to journalOriginal Articlepeer-review

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