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Table 3 Statistics, corrected item-total correlation, floor and ceiling effects, and factorial loading for RAEH items (N = 200)

From: Psychometric validation of an empowerment scale for Spanish-speaking patients with rheumatoid arthritis

Item Median (25th–75th IQ) score Corrected item-total correlation Floor effect (% scoring 1) Ceiling effect (% scoring 5) α if item delete Factorial loading
1 4 (4–5) 0.544 0.5 26.5 0.854 0.594
2 4 (4–5) 0.566 1 41.5 0.851 0.612
3 4 (4–5) 0.636 0.5 40 0.844 0.674
4 5 (4–5) 0.671 0.5 52.5 0.840 0.719
5 4 (3–5) 0.508 1.5 27 0.860 0.566
6 4 (4–5) 0.670 0.5 38.5 0.839 0.729
7 4 (4–5) 0.666 2 40 0.839 0.735
8 4 (4–5) 0.673 0.5 42.5 0.839 0.735
  1. Item1 = I can use positive ways to cope with rheumatoid arthritis-related stress
  2. Item 2 = I can find support to care for my rheumatoid arthritis
  3. Item 3 = I recognize what helps me stay motivated to care for my rheumatoid arthritis
  4. Item 4 = I know enough about myself to make rheumatoid arthritis care choices that are the most convenient to me
  5. Item 5 = I know what parts of taking care of my rheumatoid arthritis that I am dissatisfied with
  6. Item 6 = I am able to achieve my rheumatoid arthritis goals through concrete actions
  7. Item 7 = I can try out different ways of overcoming barriers to achieve my rheumatoid arthritis goals
  8. Item 8 = I can find ways to feel good having rheumatoid arthritis
  9. IQ interquartile, RAEH Rheumatoid Arthritis Empowerment Scale for Hispanic patients