Item performance of the scale for the assessment and rating of ataxia in rare and ultra‐rare genetic ataxias

• Main Authors: Alzahra Hamdan (Author), Andrew C. Hooker (Author), Xiaomei Chen (Author), Andreas Traschütz (Author), Rebecca Schüle (Author), ARCA Study Group (Author), EVIDENCE‐RND consortium (Author), Matthis Synofzik (Author), Mats O. Karlsson (Author)
• Format: Book
• Published: Wiley, 2024-08-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract The Scale for the Assessment and Rating of Ataxia (SARA) is widely used for assessing the severity and progression of genetic cerebellar ataxias. SARA is now considered a primary end point in several ataxia treatment trials, but its underlying composite item measurement model has not yet be...