@article{ref1,
title="Measuring psychological, social, and environmental influences on leisure-time physical activity among adults",
journal="Australian and New Zealand journal of public health",
year="2007",
author="Burton, Nicola W. and Oldenburg, Brian and Sallis, James F. and Turrell, Gavin",
volume="31",
number="1",
pages="36-43",
abstract="UNLABELLED: Many of the self-administered scales for measuring physical activity (PA) influences were originally developed for vigorous-intensity exercise, focus on only one domain of influence, and have not been evaluated for both reliability and validity using population-based samples. OBJECTIVE: This study describes the factorial validity and internal reliability of scales for measuring individual-level psychological, social, and environmental influences on leisure-time PA among adults in the general population. METHOD: Constructs were identified from a literature review and formative research with a socio-economically diverse sample. Items were generated using previously developed scales and interview data. New items were pre-tested using reliability and principal components analyses, with data collected from a mail survey sent to a randomly selected population-based sample. Qualitative feedback was obtained from a convenience sample and expert panel. A second mail survey provided data for principal components and reliability analyses. RESULTS: Twenty-eight scales were factorially derived and 24 had acceptable or marginally acceptable levels of internal consistency with Cronbach's alpha values ranging from 0.65 to 0.91. CONCLUSIONS AND IMPLICATIONS: The 24 scales are suitable for researchers and practitioners interested in measuring individual-level influences on PA that are consistent with Social Cognitive Theory. More research is required to assess predictive validity, sensitivity to change and test/re-test reliability.<p /><p>Language: en</p>",
language="en",
issn="1326-0200",
doi="",
url="http://dx.doi.org/"
}