Illness Perception Questionnaire—Revised
Also known as: IPQ-R, Illness Perception Questionnaire
The Illness Perception Questionnaire—Revised (IPQ-R) is a 70-item measure (brief version: 38 items) developed by Moss-Morris and colleagues (2002) to assess how individuals perceive and cognitively represent their illness. Based on Leventhal's Common Sense Model of illness representation, the IPQ-R measures nine dimensions: Identity (symptoms associated with the illness), Timeline (perceived duration and course), Consequences (expected impacts on functioning and quality of life), Personal Control (perceived ability to influence the illness), Treatment Control (perceived effectiveness of medical treatment), Illness Coherence (understanding of the illness), Concern (worry about the illness), Emotions (emotional responses to the illness), and Causation (attributed causes of illness). These cognitive representations profoundly influence coping behaviors, treatment adherence, emotional well-being, and actual health outcomes. The IPQ-R is widely used in chronic disease management (diabetes, asthma, cardiac disease, arthritis), mental health, rehabilitation, and health psychology research to understand illness-specific beliefs and to guide psychosocial interventions.
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When to use it
Use the IPQ-R in chronic disease management clinics (diabetes, asthma, cardiac disease, arthritis, cancer) to understand patient beliefs about their illness and identify representations requiring intervention. It is particularly valuable early after diagnosis when illness representations are forming. Administer IPQ-R to identify patients with maladaptive representations (high consequences without control, low coherence, catastrophizing) who may benefit from psychoeducation or cognitive interventions. Use it to evaluate whether patient education programs successfully shift representations toward more adaptive patterns (increased coherence, appropriate control beliefs). In psychological treatment settings, IPQ-R helps identify cognitive distortions about illness and guides cognitive restructuring. Choose IPQ-R when you need to understand how patients conceptualize their illness—not just medical knowledge, but their emotional and cognitive reaction to the diagnosis.
Strengths & limitations
- Comprehensive nine-dimension assessment: captures multiple aspects of illness representation, moving beyond single constructs like 'illness severity' to a multifaceted model.
- Theoretically grounded: based on Leventhal's Common Sense Model, well-validated in health psychology literature.
- Psychometric quality: internal consistency (Cronbach α = 0.60–0.82 per subscale), test-retest reliability (r = 0.65–0.80), and construct validity across diverse chronic illnesses.
- Predictive validity: illness representations predict treatment adherence, emotional well-being, coping, and health outcomes across conditions.
- Actionable: identifies specific maladaptive representations amenable to psychoeducation (coherence), cognitive restructuring (catastrophizing consequences), or self-management coaching (personal control).
- Length: full IPQ-R is 70 items, which may create respondent burden; brief version reduces this but with some loss of specificity.
- Condition-specific wording: each chronic illness requires slightly different wording; researchers must adapt items for their population.
- Self-report bias: people may minimize or exaggerate symptoms and concerns depending on context (e.g., report fewer symptoms when seen as 'doing well').
- Temporal stability: illness representations shift in response to disease progression, treatment changes, or emotional events; a single assessment captures a snapshot.
- Causation complexity: causal attribution items are sometimes difficult to score objectively (people may attribute multiple causes); open-ended responses require categorization.
Frequently asked
Should I administer the full 70-item IPQ-R or the brief 38-item version?
For research requiring detailed assessment or population studies, use the full version. For clinical practice, time-pressured settings, or repeated measurement, the brief version is efficient and correlates well with the full version. Choose based on your setting and balance of detail vs. respondent burden.
What if someone scores high on Consequences but that's realistic given their illness severity?
High Consequences may be appropriate if the illness is genuinely serious. The key is whether beliefs match reality and whether the person has strategies to cope. If someone accurately believes their illness has major consequences but also believes they can manage it (high Personal Control) and understands what to do (high Coherence), outcomes are often good despite high Consequences. Concern becomes problematic only if it's paralyzing and unsupported by coping.
Can illness representations change, or are they stable over time?
Representations are relatively stable but do change in response to disease progression, treatment effects, major life events, or targeted interventions. Cognitive-behavioral interventions targeting representations (e.g., correcting misconceptions, building problem-focused coping) can shift IPQ-R scores. Reassess every 3–6 months to monitor changes.
How do I use causation attribution information in practice?
Causation beliefs inform psychoeducation. If someone attributes their condition entirely to fate or genetics, education should acknowledge genetic/biological factors but also emphasize modifiable causes (lifestyle, environmental factors). If someone attributes illness to personal fault ('I brought this on myself'), intervention addresses guilt and shame while supporting self-compassion and forward-focused management. Match education to patient's causal model.
Sources
- Moss-Morris, R., Weinman, J., Petrie, K. J., Horne, R., Cameron, L. D., & Buick, D. (2002). The Revised Illness Perception Questionnaire (IPQ-R). Psychology and Health, 17(1), 1-16. DOI: 10.1080/08870440290001494 ↗
How to cite this page
ScholarGate. (2026, June 3). Illness Perception Questionnaire—Revised. ScholarGate. https://scholargate.app/en/health-behavior/illness-perception-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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- Multidimensional Health Locus of Control ScaleHealth Behavior↔ compare
- Patient Activation MeasureHealth Behavior↔ compare