TY  - JOUR
PY  - 2021//
TI  - Development and validation of a perceived barriers to physical activity scale for low-income adolescents
JO  - Journal of physical activity and health
A1  - Li, Cheng
A1  - Hullings, Christy
A1  - Wang, Wei
A1  - Palmer Keenan, Debra M.
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - 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>
LA  - en
SN  - 1543-3080
UR  - http://dx.doi.org/10.1123/jpah.2020-0259
ID  - ref1
ER  -