| MEASUREMENT PROPERTIES | |
| Limitations | <5 European languages (English) |
| Observations | |
| 1. RELIABILITY | |
| A. Internal Consistency | Tested |
| Cronbach's (Describe) |
Internal consistency reliability was in the excellent range for SF-MPQ-2 total pain score (Cronbach’s alpha = 0.96) and in the good to excellent range for each of the SF-MPQ-2 pain scale scores (Cronbach’s alpha ranged between 0.84 and 0.92). |
| B. Reliability intraobserver or test-retest | Tested |
| Continuous scores: intraclass correlation coefficient (ICC) Dichotomus: Cohen kappa (Describe) |
The test–retest reliability of the SF-MPQ-2 domains was rated “Good” to “Excellent” (ICC= 0.78-0.93) |
| C. Reliability interobserver or Measurement error | Tested |
| Standard error of measurement (SEM), smallest detectable change (SDC) or Limits of agreement (LoA) (Describe) |
The total scale SEMagreement was approximately 5% of the total score of the scale. Individual subscale SEMagreement ranged from 0.73 to 0.99 (approximately ≤ 10% of the total score). |
| 2. VALIDITY | |
| A. Content validity: face validity | Not Tested |
| Expert opinion (relevance and comprehensiveness) (Describe) |
|
| B. Construct Validity: Structural validity |
Tested |
| Hypotheses-testing | Tested |
| Cross-cultural validity | Not Tested |
| Brief Description |
All SF-MPQ-2 items were first constrained to load on a single latent factor. Results of this one-factor CFA demonstrated marginal fit (TLI = 0.82, CFI = 0.84, SRMR = 0.06, RMSEA = 0.09, AIC = 19129). A four-factor model demonstrated improved overall fit, as evidenced by increased TLI and CFI and reductions in RMSEA and AIC (TLI = 0.88, CFI = 0.89, SRMR = 0.06, RMSEA = 0.08, AIC = 18983). |
| C. Criterion validity | Tested |
| Comparison with a 'gold standard' Continuous scores: correlations, ROC curves Dichotomus: Sensitivity & Specificity (Describe) |
Many health-related outcome measures correlated with the SF-MPQ-2 in different MSK populations. |