Table 4 Mokken scaling coefficients and reliability estimations for each of the PROMIS General Life Satisfaction 5a items and scale
From: PROMIS® General Life Satisfaction scale: construct validity in musculoskeletal pain patients
Coefficient H | 0.700 (±0.031) |
Item coefficients (Hi) | |
In most ways, my life is close to perfect (PA045m) | 0.657 (±0.042) |
If I could live my life over, I would change almost nothing (PA046) | 0.747 (±0.028) |
I am satisfied with my life (PA047) | 0.748 (±0.031) |
So far I have gotten the important things I want in life (PA048) | 0.633 (±0.038) |
My life situation is excellent (PA049m) | 0.728 (±0.028) |
Invariant item ordering (HT) | 0.37 |
Mokken’s rho | 0.91 |
Cronbach’s alpha (ordinal) | 0.91 [95%CI 0.90–0.93] |
McDonald’s omega total (ordinal) | 0.91 [95%CI 0.90–0.93] |
McDonald’s omega hierarchical (ordinal) | 0.91 |