Dataset for: Development and content validation of the Multidimensional Multiple Sclerosis Fatigue Scale (MMFS).

his dataset contains the expert consensus data from the development and content validation of the Multidimensional Multiple Sclerosis Fatigue Scale (MMFS). The study utilized a rigorous two-round Delphi methodology to evaluate a comprehensive clinical tool designed to assess the multidimensional nature of fatigue in individuals with multiple sclerosis (MS). The dataset includes: Anonymized demographic and professional characteristics of the multidisciplinary panel of 16 clinical experts (physiotherapists, occupational therapists, and a neurologist). Quantitative expert ratings (using a 4-point Likert scale) assessing the clinical relevance of 36 preliminary scale items across five theoretical domains: Fatigue Triggers, Fatigue Types, Fatigue Impact, Fatigue Patterns, and Fatigue Awareness & Control. The Delphi process resulted in a final, highly validated 35-item scale. This dataset supports the findings published in the associated manuscript and is made available to ensure research transparency and reproducibility. Note: All participant data has been fully anonymized to protect the identities of the expert panelists.