Tools
Tools
Milton, K 
ORCID: https://orcid.org/0000-0002-0506-2214, Bull, F C and Bauman, A
(2011)
Reliability and validity testing of a single-item physical activity measure.
British Journal of Sports Medicine, 45.
pp. 203-208.
ISSN 0306-3674
Abstract
OBJECTIVE: To develop and test a new single-item physical activity screening tool, suitable for assessing respondents' eligibility for behaviour change interventions. DESIGN: Two single-item assessment tools were developed, one using a "past week" recall period, the other using a "past month" recall period. A quota sampling system was used to recruit 480 adults from across England, Scotland and Wales. Half the sample completed the past-week question and half completed the past-month version. Test-retest reliability was assessed over a 2- to 5-day period. Concurrent validity was assessed using the Global Physical Activity Questionnaire and the UK Active People Survey. All surveys were completed via telephone interviews. RESULTS: Both versions of the single-item instrument demonstrated strong reproducibility (r=0.72-0.82), using Spearman's rank correlation coefficients. The past-week recall question showed strong agreement in the classification of respondents meeting the current physical activity recommendation (kappa=0.63, 95% CI 0.54 to 0.72).Concurrent validity over the past week compared to the Global Physical Activity Questionnaire was modest (r=0.53) and slightly weaker for the past month compared to the Active People Survey (r=0.33-0.48). CONCLUSION: Both versions of the new single-item measure performed as well as other short physical activity tools in terms of reliability and concurrent validity. Criterion validity testing of the single-item measure is recommended to establish its ability to assess objectively measured physical activity levels. In addition, further research to assess the responsiveness of the single-item measure in detecting changes in physical activity will inform its usefulness in programme evaluation.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School |
| UEA Research Groups: | Faculty of Medicine and Health Sciences > Research Groups > Epidemiology and Public Health Faculty of Medicine and Health Sciences > Research Groups > Health Promotion Faculty of Medicine and Health Sciences > Research Groups > Public Health and Health Services Research (former - to 2023) Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health Faculty of Medicine and Health Sciences > Research Centres > Population Health |
| Depositing User: | Pure Connector |
| Date Deposited: | 26 Jan 2018 15:30 |
| Last Modified: | 03 Jan 2024 02:21 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/66102 |
| DOI: | 10.1136/bjsm.2009.068395 |
Actions (login required)
 |
View Item |