@article{ref1,
title="Development and validation of a perceived barriers to physical activity scale for low-income adolescents",
journal="Journal of physical activity and health",
year="2021",
author="Li, Cheng and Hullings, Christy and Wang, Wei and Palmer Keenan, Debra M.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="BACKGROUND: Low-income adolescents' physical activity (PA) levels fall below current recommendations. Perceived barriers to physical activity (PBPA) are likely significant predictors of PA levels; however, valid and reliable measures to assess PA barriers are lacking. This manuscript describes the development of the PBPA Survey for Low-Income Adolescents. <br><br>METHODS: A mixed-method approach was used. Items identified from the literature and revised for clarity and appropriateness (postcognitive interviews) were assessed for test-retest reliability with 74 adolescents using intraclass correlation coefficient. Items demonstrating low intraclass correlation coefficients or floor effects were removed. Both exploratory factor analysis and confirmatory factor analysis analyses (n = 1914 low-income teens) were used to finalize the scale; internal consistency was assessed by Cronbach's alpha. Concurrent validity was established by correlating the PBPA with the PA questionnaire for adolescents using a Spearman correlation. <br><br>RESULTS: The exploratory factor analysis yielded a 38-item, 7-factor solution, which was cross-validated by confirmatory factor analysis (comparative-fit index, nonnormed fit index =.90). The scale's Cronbach's alpha was.94, with subscales ranging from.70 to.88. The PBPA Survey for Low-Income Adolescents' concurrent validity was supported by a negative PA questionnaire for adolescents' correlation values. <br><br>CONCLUSION: The PBPA Survey for Low-Income Adolescents can be used to better understand the relationship between PBPA among low-income teens. Further research is warranted to validate the scale with other adolescent subgroups.<p /> <p>Language: en</p>",
language="en",
issn="1543-3080",
doi="10.1123/jpah.2020-0259",
url="http://dx.doi.org/10.1123/jpah.2020-0259"
}