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The primary purposes of this investigation were to (a) continue a line of research examining the psychometric defensibility of… Expand Objective: Recent publications reported that a bifactor model better represented the underlying structure of ADHD than classical… Expand Many rating scales have been applied to the evaluation of dystonia, but only few have been assessed for clinimetric properties… Expand OBJECTIVES
To develop a polysomnographic video-based scale for rating the severity of REM sleep behavior disorder (RBD), to… Expand OBJECTIVE
To assess health values in subjects with systemic sclerosis (SSc) and determine variability explained by demographics… Expand Health-related quality of life (HRQoL) measured on population level may be useful to guide policies for health. This study aims… Expand Previous studies have shown a discrepancy between common utility elicitation methods, such as rating scale (RS) elicitations, and… Expand This paper compares the relative performance of quality adjusted life years (QALYs) based on quality weights elicited by rating… Expand The objective of the study was to consider five methods for valuing health states with respect to their comparability (convergent… Expand Six depression rating scales (RS) (Beck Depression Inventory, BDI; Zung Self-Rating Scale, SDS; Visual Analogue Scale, VAS… Expand