Tablet Questionnaire for Medication Adherence
Also known as: Tablet Questionnaire, TAB-Q
The Tablet Questionnaire is a brief, simple self-report tool designed to assess medication non-adherence through direct questions about dose-skipping behavior and reasons for non-adherence. Developed by Adeniji and Brown in 2012, it prioritizes simplicity and cultural accessibility, making it particularly valuable in low-resource settings and populations with limited health literacy. Despite its brevity, the measure demonstrates good sensitivity for detecting non-adherence and has been validated across African and international populations.
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When to use it
The Tablet Questionnaire is particularly appropriate in resource-limited or low-literacy settings where simpler, shorter measures are more feasible and acceptable than longer psychometric scales. It is valuable in primary care and chronic disease clinics in low and middle-income countries, clinical encounters where time is limited, and populations with cognitive impairment or language barriers. It is also useful in clinical trials where multiple adherence assessments are needed and respondent burden must be minimized. The measure's cultural simplicity makes it suitable for diverse international populations.
Strengths & limitations
- Simplicity and brevity: Minimal number of questions; takes 2–5 minutes to administer; no complex scoring algorithms.
- Appropriate for low-literacy populations: Uses everyday language and direct questions; minimal risk of misunderstanding.
- Directly identifies barriers: Open-ended questions provide actionable information about why non-adherence occurs, guiding targeted intervention.
- Validated in low-resource settings: Demonstrated reliability and validity in sub-Saharan African populations and resource-limited clinical settings.
- Minimal respondent burden: Very brief; acceptable to patients with short attention spans or competing time demands.
- Simplified categorization: Binary or simple ordinal classification may obscure gradations of non-adherence (e.g., intermittent vs. consistent, intentional vs. unintentional).
- Limited psychometric data: Fewer published reliability and validity studies compared to longer scales like MARS or BMQ.
- Self-report bias: Vulnerable to social desirability; patients may underreport non-adherence even with simple, non-judgmental questioning.
- No standardized version: Different publications describe variations in item wording and scoring, limiting comparability across studies.
- Limited measurement of attitudes: Focuses on behavior and barriers, not on beliefs or satisfaction, which drive adherence in some populations.
Frequently asked
How is the Tablet Questionnaire different from MARS or other longer scales?
The Tablet Questionnaire is much briefer (typically 3–5 core questions vs. 10–18 items in MARS) and uses simpler language. It sacrifices the detailed psychometric properties and belief dimensions of longer scales but gains in efficiency, cultural appropriateness, and acceptance in resource-limited settings. For quick screening in busy clinics, the Tablet Questionnaire is preferable; for detailed research on adherence predictors, MARS or BMQ are more comprehensive.
Can I use Tablet Questionnaire in a high-resource setting?
Yes, though it is less commonly used there. In busy primary care or emergency departments, its brevity is valuable. However, it lacks the detailed information about beliefs and satisfaction that longer measures provide, and in high-literacy populations, patients may find it too simplistic. Consider using it alongside a longer scale if detailed understanding is needed.
What should I do if a patient identifies cost as a barrier?
Explore further: 'Are you having trouble affording this medication?' If yes, determine whether it is the cost of prescriptions (explore generic alternatives, patient assistance programs, subsidized clinics) or the cost of travel to obtain medication (explore mail delivery, community dispensaries). Link the patient to specific resources: social worker referral, pharmaceutical company assistance programs, government health insurance.
If a patient says they forgot, can I assume they need reminders?
Not necessarily. Forgetfulness is a common cause of non-adherence, but explore the context: Is it occasional (simple memory aid may help) or frequent (suggests cognitive impairment, overwhelming complexity, or low motivation)? For occasional forgetfulness, phone reminders, pill organizers, or linking doses to daily routines (e.g., taking with breakfast) may help. For frequent forgetfulness with unchanged regimen, investigate whether low perceived benefit or covert intentional non-adherence is the true issue.
Sources
- Adeniji, B., & Brown, C. (2012). Tablet Questionnaire: A simple tool to assess medication non-adherence. Annals of African Medicine, 11(4), 202-205. link ↗
How to cite this page
ScholarGate. (2026, June 3). Tablet Questionnaire for Medication Adherence. ScholarGate. https://scholargate.app/en/pharmacology/tablet-questionnaire
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
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