Reliability and validity of the Turkish adaptation of medication adherence self-efficacy scale in hypertensive patients.
BACKGROUND
Despite a lot of study related to medication adherence in hypertension, a major problem in research is the measurement of adherence.


OBJECTIVE
To evaluate the reliability and validity of the Turkish version of the Medication Adherence Self-Efficacy Scale (MASES) among hypertensive patients in an outpatient setting in Turkey.


METHODS
One hundred-forty adult patients, who are receiving medication for hypertension in the last one year, were included to study sample. MASES was translated using a back-translation technique, which includes the use of a panel of experts and interpreters to translate the items from the source language to the target language and then back-translate them to the source language. Psychometric evaluations of MASES-Turkish form were used construct validity; item analysis, principal component analysis and known group validity and internal consistency reliability (Chronbach's alpha)


RESULTS
Reliability coefficient of the Turkish adaptation of MASES was found 0.92, and item-total correlations ranged between 0.26 and 0.72. It was found that factor structure of the MASES-Turkish consisted with original instrument. Patients with uncontrolled hypertension had lower self-efficacy scores compared to those with normal blood pressure.
Gozum
Sebahat
S
Ataturk University School of Nursing, Department of Public Health Nursing, 25240 Erzurum, Turkey. sgozum@atauni.edu.tr
Hacihasanoglu
Rabia
R
D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000451:nursing*; D008297:Male; D055118:Medication Adherence; D008875:Middle Aged; D010045:Outpatients; D011594:Psychometrics / Q000379:methods / Q000592:standards*; D015203:Reproducibility of Results; D020377:Self Efficacy; D014175:Translating; D014421:Turkey
D000959:Antihypertensive Agents