Validity of a Scale Assessing the Built Environment for Physical Activity
Abstract:Objectives : To examine the construct validity and reliability of existing self-report items measuring perceptions of the built environment for physical activity.
Methods : Exploratory factor analysis, internal consistency, and nonparametric scaling were assessed using data from a cross-sectional sample of adults (n 479).
Results : A new 5-factor model was identified. Internal consistency and scaling reliabilities were moderate to strong, providing support for the new structure.
Conclusions : Further studies are needed to confirm these results. Subscales should be treated as indices and use sum scores in analysis to detect subtle variations and provide more precise power calculations.
Document Type: Research Article
Affiliations: 1 Assistant Professor, University of Texas School of Public Health, Brownsville, TX.
Publication date: 2010-07-01
The American Journal of Health Behavior seeks to improve the quality of life through multidisciplinary health efforts in fostering a better understanding of the multidimensional nature of both individuals and social systems as they relate to health behaviors.
The Journal aims to provide a comprehensive understanding of the impact of personal attributes, personality characteristics, behavior patterns, social structure, and processes on health maintenance, health restoration, and health improvement; to disseminate knowledge of holistic, multidisciplinary approaches to designing and implementing effective health programs; and to showcase health behavior analysis skills that have been proven to affect health improvement and recovery.
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