Validity and reliability of the Turkish Adherence to Refills and Medications Scale.

AIMS

The aim of the study was to create a Turkish version of the Adherence to Refills and Medications Scale (ARMS-7) and to examine its validity and reliability.

METHODS

The sample of this methodological type study consisted of 100 Turkish patients with chronic disease. In the evaluation of data, the content validity index, Cronbach α, test-retest, item total score correlation, exploratory and confirmatory factor analyses, and adherence statistics were used.

RESULTS

The scale's content validity index was 0.94, its Kendal W goodness-of-fit test was 0.188 (P = .246), its Cronbach α coefficient was 0.75, and its item total score correlation was between 0.32 and 0.59 (P < .001). The test-retest reliability was also satisfactory with interclass correlation coefficients higher than 0.75.

CONCLUSION

The Turkish version of the ARMS-7 is a reliable and valid instrument that can be used in the evaluation of attitudes to adherence to medications and refills based on self-reporting by the chronically ill.