| MEASUREMENT PROPERTIES | |
| Limitations | |
| Observations | |
| 1. RELIABILITY | |
| A. Internal Consistency | Tested |
| Cronbach's (Describe) |
Internal consistency of the MASRI items was assessed by Cronbach's alpha, with values ≥0.7 representing acceptable internal consistency |
| B. Reliability intraobserver or test-retest | Tested |
| Continuous scores: intraclass correlation coefficient (ICC) Dichotomus: Cohen kappa (Describe) |
The reliability of the MASRI was moderately good, with a mean kappa value for the Likert scale items of 0.5 (item 1: κ = 0.8, item 2: κ = 0.3, items 3 and 5: κ = 0.5); the test–retest reliability of the MASRI VAS was excellent (ICC = 0.93). |
| C. Reliability interobserver or Measurement error | Not Tested |
| Standard error of measurement (SEM), smallest detectable change (SDC) or Limits of agreement (LoA) (Describe) |
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| 2. VALIDITY | |
| A. Content validity: face validity | Not Tested |
| Expert opinion (relevance and comprehensiveness) (Describe) |
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| B. Construct Validity: Structural validity |
Tested |
| Hypotheses-testing | Tested |
| Cross-cultural validity | Not Tested |
| Brief Description |
The difference in this indicator between the percentage of patients among individuals adherent and non-adherent to treatment according to the MASRI was p ≤ 0.01 throughout the follow-up period. Correlation between the percentage of men having a belief barrier and the percentage of men non-adherent to treatment (MASRI) was r = 0.89 (p ≤ 0.05), r = 0.92 (p ≤ 0.01), r = 0.85 (p ≤ 0.05). |
| C. Criterion validity | Not Tested |
| Comparison with a 'gold standard' Continuous scores: correlations, ROC curves Dichotomus: Sensitivity & Specificity (Describe) |
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