| Authors, year (language) | Population | Sample size | Dimensionality | Internal consistency | Reliability | Validity | Responsiveness | |
|---|---|---|---|---|---|---|---|---|
| Distribution-based methods | Anchor-based methods | |||||||
| Monticone et al, 2014 (Italian) [84] |
Chronic NP (>12 weeks) | 118 | 1 factor | α = .95 | ICC = .98 (95 % CI .97–.98) |
rp = .76 TSK rp = .58 PCS rp = .52 NDI rp = .45 NRS | – | – |