Question 1

What is the difference between the MMAS-4 and MMAS-8?

Accepted Answer

The MMAS-4 contains four yes/no questions and is quicker but has lower sensitivity. The MMAS-8 adds four items and has better psychometric properties with sensitivity of 93%.

Question 2

How should healthcare providers respond to low adherence scores?

Accepted Answer

Explore barriers using motivational interviewing: side effects, cost, regimen complexity, forgetfulness, lack of perceived need, or mental health issues. Interventions may include simplifying the regimen or using pill organisers.

Question 3

Is the Morisky scale valid for all medications and conditions?

Accepted Answer

The scale has been validated across many chronic conditions including hypertension, diabetes, HIV, tuberculosis, and asthma. It performs best for long-term maintenance medications.

Question 4

Can the Morisky scale be used for patients with low health literacy?

Accepted Answer

For patients with limited literacy, the questions should be read aloud and clarified as needed. Pictorial versions and culturally adapted translations may improve accuracy.