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ERIC Number: EJ1153936
Record Type: Journal
Publication Date: 2017-Oct
Pages: 11
Abstractor: As Provided
ISSN: ISSN-1059-8405
Psychometric Evaluation of Three Psychosocial Measures Associated with Physical Activity among Adolescent Girls
Ling, Jiying; Robbins, Lorraine B.
Journal of School Nursing, v33 n5 p344-354 Oct 2017
The purpose of this study was to evaluate the psychometric properties of a Perceived Benefits Scale, a Perceived Barriers Scale, and a Physical Activity Enjoyment Scale with data from a group randomized controlled trial (RCT) and a test-retest study with 1-week interval. In the group RCT at baseline and Week 17, 1,012 fifth- to eighth-grade girls completed an iPad-delivered survey and wore 7-day accelerometers measuring moderate-to-vigorous physical activity (MVPA). In the test-retest study, 91 fifth- to seventh-grade girls completed the iPad-delivered survey at Times 1 and 2. Benefits, barriers, and enjoyment scales had Cronbach's as of 0.75, 0.86, and 0.78 and test-retest reliability of 0.83, 0.88, and 0.79, respectively. Benefits Scale had a two-factor structure (physical and psychosocial benefits), while the remaining two had a one-factor structure indicating construct validity. Barriers (r = -0.16) and enjoyment (r = 0.17) were correlated with MVPA indicating concurrent validity. Baseline MVPA and psychosocial benefits positively, while physical benefits negatively, predicted MVPA at Week 17 indicating predictive validity. The measures demonstrated satisfactory psychometric properties.
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Publication Type: Journal Articles; Reports - Research
Education Level: Middle Schools
Audience: N/A
Language: English
Sponsor: National Heart, Lung, and Blood Institute (DHHS/NIH)
Authoring Institution: N/A
Grant or Contract Numbers: R01HL109101