Morisky Medication Adherence Scale

The Morisky Medication Adherence Scale (MMAS-8) was developed by Morisky et al.[14] and translated into Arabic by Ashur et al.[15] The MMAS-8 is a self-reported measure that assesses patient adherence to medications. The Arabic MMAS-8 contains eight items, seven of which have two possible responses (yes/no), and the last question is rated using a 5-point Likert scale. The total score ranges between 0 and 8, and a high score means good adherence. The scoring system is divided into three categories (high = 8), (moderate = 6 to <8), and (low = <6) The Arabic MMAS-8 was found to be a reliable and valid tool for diabetes research in Arab-speaking populations. It exhibited good psychometric properties, with adequate internal consistency (Cronbach’s alpha: 0.70). The scale can also effectively differentiate between patient groups in terms of medication adherence.[15]