International Physical Activity Questionnaire, Short Form (IPAQ-SF)
Identity
Version: IPAQ short form, self-administered and telephone-administered variants, with 'last 7 days' and 'usual week' reference periods (unchanged since the 2000 consensus instruments described by Craig et al. 2003)
Structure: 7 items (walking, moderate activity, vigorous activity each as frequency in days and duration per day, plus sitting time), scored as MET-minutes per week and categorical low/moderate/high activity
Original citation: Craig CL, Marshall AL, Sjostrom M, et al. International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc. 2003. doi:10.1249/01.MSS.0000078924.61453.FB
Steward / publisher: The IPAQ Group (originating International Consensus Group), current distribution via the IPAQ website at sites.google.com/view/ipaq, maintained on a voluntary basis
Constructs claimed
Self-reported physical activity behaviour over the last 7 days across walking, moderate and vigorous intensity domains plus sitting time, summarised as total MET-minutes per week and as low/moderate/high activity categories. It is a behaviour-frequency and energy-expenditure estimator, not a latent wellbeing construct.
Evidence
Structural validity Very lowthinevidence form: canonical
indirect structural questions are largely a category mismatch for a formative index and the limited evidence comes from non-UK general and patient samples
IPAQ-SF is a formative behaviour index (three activity domains plus sitting), not a reflective scale with a single latent trait, so a conventional factor-analytic structure is only weakly applicable and is rarely tested; the developers themselves framed it as a set of activity-domain items summed to MET-minutes rather than a unidimensional scale (https://doi.org/10.1249/01.MSS.0000078924.61453.FB). The systematic review by Lee et al. found the validation literature focused overwhelmingly on criterion and construct validity against objective measures rather than on latent structure (https://doi.org/10.1186/1479-5868-8-115). Where dimensionality has been examined it is typically handled as separate activity domains rather than a common factor, and no consistent confirmatory factor model for a single physical-activity trait has been established.
Convergent and discriminant validity Moderatewell-establishedevidence form: canonical
indirect coefficients are well replicated but almost entirely in non-UK general, adolescent, student and patient samples rather than UK workers
Construct/convergent validity against objective monitors is modest and consistent with a self-report activity measure. Correlations between IPAQ-SF total activity and accelerometer-derived activity typically cluster around Spearman rho 0.30; Lee et al. reported correlations ranging from 0.09 to 0.39 across 23 validation studies, with none reaching a minimal acceptable standard (https://doi.org/10.1186/1479-5868-8-115). In adolescent boys IPAQ-SF MVPA correlated 0.31 with accelerometer MVPA (https://doi.org/10.1371/journal.pone.0169527). In Chilean adults concurrent validity against ActiGraph was likewise weak to moderate (https://doi.org/10.1371/journal.pone.0291604), and in COPD patients construct validity against accelerometry was weak with wide limits of agreement (https://doi.org/10.1016/j.rmed.2022.107087). A consistent secondary finding is systematic over-reporting of activity relative to devices.
Criterion validity: reference standard Moderatewell-establishedevidence form: canonical
indirect large and consistent literature but overwhelmingly non-UK and non-workplace (general population, adolescents, students, clinical groups)
Against objective device-based reference measures (accelerometry, and in the founding work the CSA/MTI accelerometer) IPAQ-SF shows weak-to-moderate criterion validity with a well-documented overestimation bias. The 12-country developer study reported a median criterion validity of about rho 0.30 against accelerometry (https://doi.org/10.1249/01.MSS.0000078924.61453.FB). The Lee et al. systematic review found correlations of 0.09 to 0.39 against objective standards including accelerometry, doubly labelled water and fitness measures, with IPAQ-SF generally overestimating physical activity, sometimes markedly (https://doi.org/10.1186/1479-5868-8-115). A quantitative bias analysis using ActiGraph as the criterion in 235 Australian adults derived substantial attenuation factors, confirming large measurement error relative to the device standard (https://doi.org/10.1093/ije/dyz209). Sedentary/sitting-time validity against devices is also weak in EU meta-analysis (https://doi.org/10.3390/ijerph18094602) and in college students (https://doi.org/10.3390/ijerph19148379). No true diagnostic gold standard exists for the construct; accelerometry and doubly labelled water are the accepted criterion measures and IPAQ-SF is at best moderately valid against them.
Criterion validity: organisational Absent (a finding about the literature)untestedevidence form: canonical
indirect the question is untested; workplace use is as a behaviour outcome, not validated against organisational criteria
No located study validates IPAQ-SF against organisational or work outcomes (sickness absence, turnover, job performance, or diagnosed conditions in a work context). Workplace-adjacent studies use IPAQ-SF only as an outcome measure of behaviour change within workplace physical-activity interventions, for example the Walk@WorkSpain office programme, which used the IPAQ short form to detect changes in activity-related energy expenditure but did not relate scores to absence, productivity or turnover (https://doi.org/10.1093/eurpub/ckx104). Its responsiveness to intervention has been examined in a men-only weight-management programme, again against device measures rather than organisational endpoints (https://doi.org/10.1123/jmpb.2019-0018). Criterion validity against work outcomes is therefore Absent in the retrieved literature.
Internal consistency Not applicable (category difference)untestedevidence form: canonical
direct internal consistency is a category mismatch for a formative activity index, not an evidence gap that a UK study could fill
Internal consistency (Cronbach alpha) is only marginally meaningful for IPAQ-SF because the items are a formative set of distinct activity domains summed to an index rather than reflective indicators of one latent trait, so alpha is rarely and inconsistently reported and is not the appropriate reliability statistic. The validation literature summarised by Lee et al. concentrates on criterion validity and test-retest reproducibility rather than internal consistency (https://doi.org/10.1186/1479-5868-8-115), and the founding study reported repeatability (test-retest) rather than an internal-consistency coefficient (https://doi.org/10.1249/01.MSS.0000078924.61453.FB).
Test-retest reliability Moderatewell-established
indirect reproducibility is repeatedly demonstrated but in international general, clinical and student samples, not UK workers; the founding rho ~0.8 pools short and long forms
| Coefficient | Type | Interval | Sample | Population | Evidence form |
|---|---|---|---|---|---|
| Spearman rho clustered around 0.8 (pooled across IPAQ short and long forms) | r | within the same week | multi-centre, 14 centres across 12 countries | adults, international general population | canonical |
| ICC reported for continuous IPAQ-SF variables with limits of agreement, SEM and MDC (test-retest over one week) | ICC | 7 days | 62 | COPD patients, Portugal | canonical |
| ICC for test-retest reliability over one week | ICC | 7 days | 161 | Chilean adults aged 35 to 65 | canonical |
| ICC reported for IPAQ-SF measured on day 0 and day 8 (moderate reliability) | ICC | 8 days | 142 | college students, China | canonical |
Test-retest repeatability is one of IPAQ-SF's better-evidenced properties. The founding 12-country study reported same-week repeatability with Spearman rho clustered around 0.8, comparable for short and long forms (doi:10.1249/01.MSS.0000078924.61453.FB). Subsequent structured retest studies over roughly one week report ICCs in clinical (COPD, doi:10.1016/j.rmed.2022.107087), general adult (Chile, doi:10.1371/journal.pone.0291604) and student (China, doi:10.3390/ijerph19148379) samples, generally in a moderate range. Care is needed to separate true test-retest ICCs from concurrent validity coefficients, which are lower. No UK working-adult test-retest estimate was located.
Measurement invariance Very lowuntestedevidence form: canonical
indirect cross-country use exists but formal invariance is untested, and none of it is UK occupational
Formal measurement-invariance testing (configural, metric, scalar) of IPAQ-SF is essentially absent. The founding study collected reliability and validity data across 14 centres in 12 countries and judged the instrument suitable for cross-national comparison, but this was a comparability argument from correlations rather than a formal invariance analysis (https://doi.org/10.1249/01.MSS.0000078924.61453.FB). Cross-cultural studies that administer IPAQ-SF in multiple countries, such as a mainland China, Taiwan and Malaysia sample, use it as a covariate and do not test invariance of its measurement model (https://doi.org/10.3390/ijerph191912135). No configural/metric/scalar invariance evidence across sex, age, occupation or language was located.
Responsiveness and MIC Lowthinevidence form: canonical
indirect sparse responsiveness evidence from a male weight-loss cohort, an office programme and a clinical sample, none UK-representative
Responsiveness evidence is thin and a formal minimal important change has not been established. One study examined IPAQ-SF responsiveness within a 12-week men-only weight-management programme (Football Fans in Training), finding significant pre-post change but standardised response means and change scores that did not correlate well with device-measured change (https://doi.org/10.1123/jmpb.2019-0018). The Walk@WorkSpain office intervention detected self-reported increases in activity-related energy expenditure with the IPAQ short form (https://doi.org/10.1093/eurpub/ckx104). Retest studies have derived minimal detectable change values from ICC and SEM in COPD patients (https://doi.org/10.1016/j.rmed.2022.107087), but no anchor-based minimal important change for a general or working population has been established.
Populations, languages and norms
IPAQ-SF is one of the most widely used physical-activity questionnaires internationally, designed explicitly for cross-national surveillance and available in many validated language versions; the founding work spanned 12 countries (https://doi.org/10.1249/01.MSS.0000078924.61453.FB) and later validations cover, among others, Chilean Spanish (https://doi.org/10.1371/journal.pone.0291604), Portuguese in COPD (https://doi.org/10.1016/j.rmed.2022.107087), Estonian adolescents (https://doi.org/10.1371/journal.pone.0169527), Chinese college students (https://doi.org/10.3390/ijerph19148379) and multiple EU-language sitting-time versions (https://doi.org/10.3390/ijerph18094602). Standardised scoring to MET-minutes and low/moderate/high categories provides comparability, but there are no dedicated UK working-adult norms and category cut-points can misclassify because of the overestimation bias.
Criticisms and controversies
The dominant criticism is systematic overestimation of physical activity relative to objective measures, with criterion correlations against accelerometry typically only around rho 0.30 and ranging as low as 0.09; the Lee et al. systematic review concluded the evidence did not support IPAQ-SF as a valid absolute measure and cautioned against its use where accurate quantification is needed (doi:10.1186/1479-5868-8-115). Quantitative bias analysis has shown the resulting measurement error substantially attenuates associations with health outcomes such as colorectal cancer, requiring large correction factors (doi:10.1093/ije/dyz209). Sitting-time and sedentary-behaviour items validate poorly against devices (doi:10.3390/ijerph18094602). Because IPAQ-SF is a formative index rather than a reflective scale, several standard psychometric properties (unidimensional structure, internal consistency) are conceptual mismatches. For workplace wellbeing use specifically, it measures a health behaviour rather than wellbeing, has no validation against organisational outcomes, and lacks UK working-adult norms.
References (11)
- Craig CL, Marshall AL, Sjostrom M, et al. (2003). International physical activity questionnaire: 12-country reliability and validity https://doi.org/10.1249/01.MSS.0000078924.61453.FB
- Lee PH, Macfarlane DJ, Lam TH, Stewart SM (2011). Validity of the International Physical Activity Questionnaire Short Form (IPAQ-SF): a systematic review https://doi.org/10.1186/1479-5868-8-115
- Raask T, Maestu J, Latt E, et al. (2017). Comparison of IPAQ-SF and two other physical activity questionnaires with accelerometer in adolescent boys https://doi.org/10.1371/journal.pone.0169527
- Mahmood S, Nguyen NH, Bassett JK, et al. (2019). A quantitative bias analysis to estimate measurement error-related attenuation of the association between self-reported physical activity and colorectal cancer risk https://doi.org/10.1093/ije/dyz209
- Meh K, Jurak G, Soric M, Rocha P, Sember V (2021). Validity and reliability of IPAQ-SF and GPAQ for assessing sedentary behaviour in adults in the European Union: a systematic review and meta-analysis https://doi.org/10.3390/ijerph18094602
- Gao H, Li X, Zi Y, et al. (2022). Reliability and validity of common subjective instruments in assessing physical activity and sedentary behaviour among college students https://doi.org/10.3390/ijerph19148379
- Flora S, Marques A, Hipolito N, et al. (2023). Test-retest reliability, agreement and construct validity of the International Physical Activity Questionnaire short-form in patients with COPD https://doi.org/10.1016/j.rmed.2022.107087
- Balboa-Castillo T, Munoz S, Seron P, et al. (2023). Validity and reliability of the International Physical Activity Questionnaire Short Form in Chilean adults https://doi.org/10.1371/journal.pone.0291604
- Donnachie C, Hunt K, Mutrie N, et al. (2020). Responsiveness of device-based and self-report measures of physical activity to detect behaviour change in a weight-management programme https://doi.org/10.1123/jmpb.2019-0018
- Puig-Ribera A, Bort-Roig J, Gine-Garriga M, et al. (2017). Can a workplace sit less move more programme help Spanish office employees achieve physical activity recommendations? https://doi.org/10.1093/eurpub/ckx104
- Liu W, Chen JS, Gan WY, et al. (2022). Associations of problematic internet use, weight-related self-stigma, and nomophobia with physical activity https://doi.org/10.3390/ijerph191912135
Record notes
Overall confidence: IPAQ-SF is a heavily studied self-report physical-activity behaviour measure with well-established but only weak-to-moderate criterion validity against accelerometry (typically rho ~0.30, range 0.09 to 0.39) and a well-documented overestimation bias, and reasonable same-week test-retest repeatability. It is not a wellbeing instrument; for the OWHS purpose it is a workplace-adjacent behaviour measure. Two absences are important and honestly recorded: criterion validity against organisational/work outcomes is untested (Absent), and formal measurement invariance is untested (Very low). Internal consistency and single-factor structural validity are largely category mismatches for a formative index and are marked Not-applicable / Very low accordingly rather than treated as ordinary evidence gaps. Nearly all evidence is population-indirect for UK working adults (general population, adolescents, students, clinical groups; no UK occupational norms located), so most grades carry an indirect flag. Licence verified 2026-07-12 against the steward's current website (open access, no permissions required, CC BY 4.0), not a founding paper. What v0.2 still made hard: the formative-index nature of IPAQ-SF means several reflective-scale fields (structural validity, internal consistency) are awkward to grade; The maintainers used Not-applicable and Very low with explicit notes rather than forcing a misleading grade.