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Normality tests for the different adherence measures
| Shapiro–Wilk statistic | Skewness (z-score) | Kurtosis (z-score) | |
|---|---|---|---|
| MARS | 0.772 (P<0.001) | −20.1 | 28.87 |
| ProMAS Rasch estimates | 0.973 (P<0.001) | 0.87 | 1.09 |
| ProMAS sum scores | 0.950 (P<0.001) | −5.57 | 0.53 |
Abbreviations: MARS, Medication Adherence Report Scale; ProMAS, Probabilistic Medication Adherence Scale.
