A web application that can be used to obtain patient-specific reference values for PROMIS Physical Functioning, Upper Extremity, and Pain Interference item banks in general populations from the USA, UK, and Germany.
Find below 2 talks about recent publications.
I held the first one at last years PHO and it is about the assessment of individual change of PROMIS scores over time. The paper has been accepted recently by Quality of Life Research and should be available soon.
Purpose: In developing item banks for patient reported outcomes (PROs), nonparametric techniques are often used for investigating empirical item response curves, whereas final banks usually use parsimonious parametric models. A flexible approach …
Carl Falk from McGill University in Montreal, Canada and I investigated the use of a more flexible IRT model to fit the PROMIS Physical Function Itembank. The paper has been now published in Quality of Life Research’s nonparametric IRT section.