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Medication Adherence Assessment Questionnaire (MAS-12) Test

Take the online Medication Adherence Assessment Questionnaire (MAS-12) Test - AI psychologist FreudlyYou can take Medication Adherence Assessment Questionnaire (MAS-12) Testhere. Online version of a simple and accurate psychological test with interpretation.en
Understand what helps or hinders taking meds as prescribed in about 2 minutes. Get clear, actionable insights to target support and strengthen treatment results.
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Questions: 102 minutes
08:30
October 2, 2025
October 2, 2025
Material has been updated
October 2, 2025
Material has been published
27,573 views
2,082 completions
1,812 likes
Verified by Daniel Hall
Psychologist with 25 years of experience
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How the Scales are Structured

example score
8/10
Agreement to Take Medication (AtTM)
Measures the patient’s willingness to take medications as prescribed and make necessary lifestyle adjustments to support treatment.
Low consent
Moderate consent
High consent
24: Low consent | 57: Moderate consent | 810: High consent
A score of 8 indicates high consent, reflecting a generally positive attitude toward following the prescribed medication regimen.
example score
5/10
Readiness to Receive Information (RtRI)
Assesses how willing the patient is to receive and use information about their medications as part of treatment involvement.
Low readiness
Moderate readiness
High readiness
24: Low readiness | 57: Moderate readiness | 810: High readiness
A score of 5 indicates moderate readiness, suggesting some openness to medication information but not consistently seeking or using it.
example score
10/15
Collaboration With Healthcare Providers (CWHP)
Measures how actively the patient collaborates with healthcare professionals by discussing treatment and following professional recommendations.
Low collaboration
Moderate collaboration
High collaboration
37: Low collaboration | 811: Moderate collaboration | 1215: High collaboration
A score of 10 indicates moderate collaboration, suggesting the patient is generally open to discussing treatment and often follows recommendations, though consistency may vary.
example score
9/15
Regimen Adherence (RA)
Measures how consistently a patient follows the prescribed medication regimen as part of maintaining a routine.
Low consistency
Moderate consistency
High consistency
37: Low consistency | 811: Moderate consistency | 1215: High consistency
A score of 9 indicates moderate consistency in maintaining the medication routine, with generally adequate adherence but some variability in following the regimen.
example score
26/50
Overall Medication Adherence Score (OMAS)
This scale measures overall adherence to prescribed medication treatment, with higher scores indicating more consistent adherence.
Low adherence
Moderate adherence
High adherence
1023: Low adherence | 2436: Moderate adherence | 3750: High adherence
A score of 26 falls in the Moderate adherence range, suggesting generally partial consistency with the prescribed regimen.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Patients on long-term meds
46%OF USERS
People managing chronic conditions use it to check how consistently they take daily medications and what gets in the way.
Recently diagnosed patients
33%OF USERS
Those starting a new treatment take it to identify early doubts, side effects concerns, or routine problems before habits form.
Clinicians and pharmacists
21%OF USERS
Healthcare professionals use it during visits to quickly spot adherence barriers and tailor support or counseling.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Consent to take medications (Cttm)
Consent to take medications (Cttm)
Average
7.2
Normal range
6.18.4
min.
2
max.
10
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Readiness to Receive Information (RtRI)
Readiness to Receive Information (RtRI)
Average
5.6
Normal range
4.66.6
min.
2
max.
10
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Collaboration with healthcare professionals (Cwhp)
Collaboration with healthcare professionals (Cwhp)
Average
10.6
Normal range
8.412.8
min.
3
max.
15
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Maintaining a routine (Mar)
Maintaining a routine (Mar)
Average
6.5
Normal range
4.78.2
min.
3
max.
15
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Overall treatment adherence score (Otas)
Overall treatment adherence score (Otas)
Average
27.8
Normal range
22.932.7
min.
10
max.
50
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS

Example Questions From the Test

This questionnaire assesses the use of medications that are currently prescribed to you. Unless otherwise specified, please base your responses on your experience over the past six months or so. If you have more than one medical condition, your responses should reflect your use of all medications. Note: In this questionnaire, the term “medications” refers to medicines taken by mouth, injections (e.g., insulin), ointments, medicated patches, and inhalers.
    • Never
    • Rarely
    • Sometimes
    • Often
    • Always
    • Never
    • Rarely
    • Sometimes
    • Often
    • Always
    • Never
    • Rarely
    • Sometimes
    • Often
    • Always
WHAT THE TEST MEASURES
About This Assessment
Medication Adherence Assessment Questionnaire, MAS-12 Test

Medication Adherence Assessment Questionnaire (MAS-12) Test - Symptoms and Signs

compliance

This questionnaire is a brief self-report tool used to screen for barriers to taking prescribed medications as directed. The Medication Adherence Assessment Questionnaire (MAS-12) is intended to support clinical conversations about adherence-related behaviors and common obstacles (e.g., forgetfulness, doubts about benefit, or practical difficulties).

It consists of 10 items and typically takes about 2 minutes to complete. Responses may help identify areas where additional education, problem-solving, or regimen support is needed and can be used to inform follow-up assessment or care planning.

In clinical or outpatient settings, the Medication Adherence Assessment Questionnaire (MAS-12) may be administered as part of routine monitoring to flag potential nonadherence and guide targeted intervention.

Author: Donald E. Morisky
Literature: DiMatteo, M. R. Variations in patients’ adherence to medical recommendations: A quantitative review of 50 years of research. Medical Care. 2004.; Ueno, H., Yamazaki, Y., Yonekura, Y., Park, M. J., Ishikawa, H., & Kiuchi, T. Reliability and validity of a 12-item medication adherence scale for patients with chronic disease in Japan. BMC Health Services Research. 2018.
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