Surgical care today is no longer evaluated only on clinical outcomes, but also on holistic
patient wellbeing. Patient-reported outcomes (PROs) are a representation of the patient's …

Purpose This work is part of an international, interdisciplinary initiative to synthesize
research on response shift in results of patient-reported outcome measures. The objective is …

This simulation study examines the characteristics of the Explanatory Item Response Model
(EIRM) when estimating treatment effects when compared to classical test theory (CTT) sum …

Background Patient-reported outcome (PRO) measures play a key role in the advancement
of patient-centered care research. The accuracy of inferences, relevance of predictions, and …

Purpose Some IRT models have the advantage of being robust to missing data and thus can
be used with complete data as well as different patterns of missing data (informative or not) …

Purpose This study describes the characteristics and quality of reporting for published
computer simulation studies about statistical methods to analyze complex longitudinal (ie …

When assessing change in patient-reported outcomes, the meaning in patients' self-
evaluations of the target construct is likely to change over time. Therefore, methods …

Advances in tourism research depend on the development and validation of measurement
scales using appropriate psychometric techniques. However, scale development practice is …

Abstract Background Health-Related Quality of Life (HRQoL) is an important endpoint in
oncology clinical trials aiming to investigate the clinical benefit of new therapeutic strategies …

Abstract Objective The SPUR (Social, Psychological, Usage, and Rational) Adherence
Profiling Tool is a recently developed adaptive instrument for measuring key patient-level …