Exploring possibilities for shortening the 22-item Sino-Nasal Outcome Test (SNOT-22) using item response theory.
David Tianxiang LiuKatie M PhillipsMarlene M SpethGerold BesserChristian A MuellerAhmad R SedaghatPublished in: International forum of allergy & rhinology (2021)
IRT provides data-driven opportunities for the continuous development and refinement of the SNOT-22. While patient and provider input must be accounted for too, our results show that future revisions of the SNOT-22 could include significantly fewer items.