Content validity and psychometric evaluation of Functional Assessment of Chronic Illness Therapy-Fatigue in patients with psoriatic arthritis

• Main Authors: David Cella (Author), Hilary Wilson (Author), Huda Shalhoub (Author), Dennis A. Revicki (Author), Joseph C. Cappelleri (Author), Andrew G. Bushmakin (Author), Elizabeth Kudlacz (Author), Ming-Ann Hsu (Author)
• Format: Book
• Published: SpringerOpen, 2019-05-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background To evaluate the measurement properties (e.g., content validity, reliability, and ability to detect change) of the Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue scale in patients with active psoriatic arthritis (PsA). Methods One-on-one semi-structured qualitati...