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Reliability of MGLS using standardized coefficient alpha (n=6,261)
| Item | Item-rest correlation* | Alpha |
|---|---|---|
| Ever forget to take medicines | 0.23 | 0.43 |
| Ever careless about taking medicines | 0.31 | 0.35 |
| Stop taking medicines when feeling better | 0.28 | 0.38 |
| Stop taking medicines if you feel worse | 0.25 | 0.42 |
| Test Scale | 0.47 |
MGLS: Morisky Green Levine Medication Adherence Scale.
Calculated using the correlation between each item and the overall score of the measure excluding that item.
