Check medication-routine friction over the last 3 weeks with a 12-item MAS-style proxy.

  • This uses original proxy wording built around the MAS-12 four-domain structure rather than the source questionnaire text.
  • Use the result to spot routine friction and prepare follow-up questions, not to change medication on its own.
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Medication adherence balance map

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Four adherence lanes
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Friction points to review first

These are the lowest-keyed items in the current profile, so they are the likeliest places where the routine is breaking down.

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Top priorities
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Practical adjustments
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Bring into follow-up
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When earlier follow-up may help: {{ supportNote }}
Answer review

Review the keyed answer ledger before you export or compare this proxy with a later recheck.

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Medication routines break down for reasons that are often ordinary rather than dramatic. A refill is late, a shift change moves dinner, side effects feel embarrassing to mention, or the dose instructions are remembered differently after the appointment. Those small points of friction can matter as much as intention because long-term treatment depends on repeated behavior over many normal days.

Adherence is not only the act of swallowing the right pill at the right time. It includes staying with an agreed plan, knowing what the medicine is for, reporting side effects, asking questions early enough, and telling the care team when the regimen does not fit real life. The older term compliance usually points toward following instructions. Adherence is wider because it assumes a plan that patient and clinician can discuss, test, and adjust safely.

Different evidence sources see different parts of the routine. Refill records can show whether medicine was collected, but they cannot explain nausea, confusion after a missed dose, cost pressure, storage problems, or quiet self-directed stopping. Self-report scales add that missing context when the answers turn a vague concern into a specific conversation about timing, side effects, communication, or daily-life fit.

  • Dose behavior covers amount, timing, missed-dose handling, and self-directed changes.
  • Clinical conversation covers questions, preferences, prior medication problems, and whether important context reaches the prescriber or pharmacist.
  • Medication knowledge covers purpose, warning signs, side effects, and trusted information sources.
  • Daily-life fit covers acceptance, routine anchors, schedule friction, and the day-after-day burden of treatment.
Four MAS-style adherence dimensions feed a keyed total from 12 to 60.

A four-lane adherence profile keeps those differences visible. One person may take doses on time while avoiding a side-effect conversation. Another may understand the medicine well but feel worn down by how much the regimen interrupts sleep, meals, work, travel, or family routines. The same total can therefore point toward very different next questions.

A questionnaire result should support safer follow-up, not replace it. It cannot prove that every dose was taken, confirm that a regimen is safe, or decide whether treatment should be started, stopped, restarted, split, combined, or changed. Sudden symptoms, allergic reactions, overdose concerns, severe confusion about dose instructions, or self-directed stopping need professional advice rather than score-based guesswork.

How to Use This Tool:

Use the last 3 weeks as the recall window unless a clinician asks for another period. Keep that window unchanged for later rechecks so a changed Total score is not just a changed memory span.

  1. Select Start assessment and answer the 12 statements in order, or use the question navigator when you need to return to an earlier statement.
  2. Choose the closest response from Almost never true for me to Almost always true. When a statement describes a problem, answer from what actually happened rather than from the plan you hoped to follow.
  3. Watch the progress text and completion marks. The final report appears only after the count reaches 12 / 12 answered.
  4. Read Total score and Overall level, then compare Priority lane, Most stable lane, and Routine balance before deciding what to discuss.
  5. Use Friction points to review first to pick one concrete topic. Those rows are the lowest keyed items in the current answer pattern.
  6. Open Answer review before copying, downloading, or sharing. Check that sensitive answers about self-directed stopping, side effects, or daily annoyance match what you meant to report.
  7. If the result does not appear, find the unanswered item in the progress text or navigator, answer it, and then recheck the summary fields.

Interpreting Results:

Higher keyed scores mean the routine has steadier support. Treat the Total score as the broad signal, then use Priority lane and the lowest keyed items to decide which medication conversation should happen first.

  • High routine friction: 12 to 29. Several parts of the routine may need prompt review.
  • Mixed adherence pattern: 30 to 41. Some supports are present, but one or more weak points can still disrupt medication use.
  • Mostly consistent routine: 42 to 50. The routine is generally holding, while the lowest lane still deserves attention.
  • Strong medication routine: 51 to 60. Current supports look broad, but low safety-sensitive items still matter.

These are house guide bands, not official MAS-12 clinical cutoffs. A one-point move from 41 to 42 changes the displayed band, but it should not be treated as a clinical change unless the item pattern and the real medication situation changed too.

Self-report can produce false confidence in both directions. A high total can hide forgotten doses, unfilled refills, or side effects that were hard to disclose. A lower total can reflect one disrupted week rather than a settled pattern. Use Answer review to verify dose timing, side-effect reporting, self-directed changes, and the exact question to bring to a pharmacist or prescriber.

Routine balance compares the strongest and weakest lanes. An even profile means the lanes are close together; wide gaps mean one part of the routine is much less steady than another, even when the total still looks acceptable.

Technical Details:

The published 12-item Medication Adherence Scale was validated for patients with chronic disease and retained four factors from an earlier 14-item version: medication compliance, collaboration with healthcare providers, willingness to access and use medication information, and acceptance of medication as part of daily life. The wording used here is an original proxy aligned to that four-factor structure; it is not a reproduction of the source questionnaire.

Each response is a 1 to 5 ordinal rating. Most items score in the same direction as the selected response, so stronger agreement raises the keyed score. Two statements point in the opposite direction: deciding on one's own to stop, skip, or change medication, and feeling annoyed by taking medication day after day. For those items, stronger agreement lowers the keyed score.

Formula Core

Each item produces one keyed score. Direct items keep the selected response, while reverse-scored items subtract the response from 6.

si = { ri direct item 6-ri item 3 or item 12 }

The total adds all 12 keyed scores, so the minimum possible total is 12 and the maximum possible total is 60.

T = ∑ i=1 12 si
Symbol Meaning Range
ri Raw response for item i 1 to 5
si Keyed score after reverse scoring when needed 1 to 5
T Total score across all 12 keyed items 12 to 60

For example, a response of 5 on item 1 contributes 5 points because it is direct. A response of 5 on item 3 contributes 1 point because item 3 is reverse scored. If the four lane scores are 15, 13, 11, and 13, the total is 52 and the mean adherence displayed in the summary is 52 divided by 12, or 4.33 out of 5 after rounding to two decimals.

Score Construction

Lane Items Lane range Low keyed scores usually point toward
Medication compliance 1 to 3 3 to 15 Problems with dose amount, timing, or self-directed medication changes.
Collaboration with healthcare providers 4 to 6 3 to 15 Questions, preferences, or prior reactions not reaching the medication conversation.
Medication information use 7 to 9 3 to 15 Unclear purpose, side-effect uncertainty, or weak reporting habits.
Acceptance and daily-life fit 10 to 12 3 to 15 A regimen that feels hard to accept, intrusive, annoying, or poorly anchored to daily routines.

Guide Bands and Balance

The guide bands are inclusive. They are useful for sorting a profile into plain-language follow-up urgency, but they are not validation-study severity cutoffs.

Guide band Lower total Upper total Boundary rule
High routine friction 12 29 Includes every total from 12 through 29.
Mixed adherence pattern 30 41 Starts at 30 and includes 41.
Mostly consistent routine 42 50 Starts at 42 and includes 50.
Strong medication routine 51 60 Starts at 51 and includes the maximum total.
Routine balance Lane spread Meaning
Even profile 0 to 2 The four lane scores are close together.
Some gaps 3 to 5 The lowest lane is noticeably weaker than the strongest lane.
Wide gaps 6 to 12 One part of the routine is much less steady than another.

The published MAS-12 validation reported acceptable reliability for the total scale and weaker reliability for the acceptance and lifestyle-fit subscale. That supports a cautious reading here: the total, the answer review, and the specific low-scoring items should carry more weight than treating any single 3-item lane as a diagnosis.

Responsible Use Note:

This proxy is informational and should be used to prepare safer medication conversations. It cannot diagnose non-adherence, confirm medication safety, replace the label instructions, or replace advice from a pharmacist, prescriber, nurse, or other qualified health professional.

  • Do not change a prescription, dose, timing pattern, or missed-dose plan because of the score alone.
  • Bring low-scoring items about self-directed stopping, side effects, confusion, cost, or daily-life burden into follow-up.
  • Seek urgent help when medication problems involve serious symptoms, allergic reaction, overdose concern, severe confusion, or immediate safety risk.

Worked Examples:

Strong total with one weak lane

Lane scores of Take 15/15, Discuss 13/15, Understand 11/15, and Fit 13/15 produce a Total score of 52/60, so Overall level is Strong medication routine. Priority lane is Understand, which makes side-effect reporting and missed-dose instructions better follow-up topics than dose timing.

A boundary total near the middle bands

Take 9/15, Discuss 11/15, Understand 10/15, and Fit 11/15 add to 41/60. Overall level remains Mixed adherence pattern because 42 is the first Mostly consistent routine total. Before treating the one-point boundary as meaningful, compare the low items in Answer review with the actual dose schedule and any recent disruptions.

A decent total with a sensitive item

A Total score of 46/60 can look reassuring, but Friction points to review first may still show Stopped on my own with a keyed score of 1/5 or 2/5. That item deserves direct review because self-directed stopping can matter more than the broad band.

Progress is stuck at 11 / 12 answered

If the final report does not appear, one statement is still unanswered. Use the question navigator to find the item without a completion mark, choose the closest response, and then recheck Total score, Priority lane, Routine balance, and Answer review.

FAQ:

Is this the original MAS-12 questionnaire?

No. It uses original proxy wording aligned to the published MAS-12 four-factor structure. Use it for self-review and preparation, not as the source instrument itself.

Why are two items scored backward?

Items about self-directed stopping and daily annoyance are reverse scored because agreement with those statements points toward more friction. A raw 5 on either item becomes a keyed 1.

What score means my medication routine is safe?

No score can prove safety. Check the medication name, dose amount, timing instructions, side effects, missed-dose advice, and any recent changes with an appropriate health professional.

Why can the priority lane matter when my total is high?

Priority lane is the lowest of the four lane scores. It can reveal a specific problem, such as weak side-effect reporting or poor schedule fit, even when the total falls in a reassuring guide band.

Why did the result not appear?

The report appears only when all 12 statements have valid answers. Check the progress text and question navigator, then answer any item without a completion mark.

Are my answers sent to a server for scoring?

Scoring runs in the browser. Copied result links can include the answer pattern in the URL, and copied or downloaded reports contain the details you choose to export or share.

Glossary:

Medication adherence
How closely medication use follows an agreed plan, including timing, dose amount, persistence, and communication about problems.
Keyed score
The 1 to 5 item score after reverse scoring has been applied when needed.
Reverse scoring
A scoring rule that turns higher agreement with a friction statement into a lower keyed score.
Priority lane
The lowest-scoring adherence lane in the current answer pattern.
Routine balance
The spread between the strongest lane score and the priority lane score.
Guide band
A house interpretation range for the 12 to 60 total score, used for follow-up planning rather than diagnosis.

References: