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Table 5 Principal component analysis item loadings for a single factor (eigenvalue 4.2, 51.5% of variance)

From: The multiple sclerosis rating scale, revised (MSRS-R): Development, refinement, and psychometric validation using an online community

MSRS-R Item Factor Loading
Walking .639
Using your arms and hands .770
Vision (with glasses or contacts if you use them) .708
Speaking clearly .751
Swallowing .737
Bowel or bladder .662
Thinking, memory, or cognition .739
Numbness, tingling, burning sensation, or pain .723