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Validity and reliability of measures assessing social-cognitive determinants of physical activity in low-active Australian adults.
- Source :
- Measurement in Physical Education & Exercise Science; Oct-Dec2018, Vol. 22 Issue 4, p322-331, 10p, 1 Diagram, 3 Charts
- Publication Year :
- 2018
-
Abstract
- This cross-sectional study of 504 community-dwelling Australian adults (328 females, 176 males, mean age 50.8 ± 13.0 years) sought to examine the reliability and validity of measurement scales for physical activity (PA) self-efficacy and outcome expectations. Participants completed demographic and anthropometric measurements, and a 23-item psychosocial questionnaire pertinent to an intervention target of 10,000 steps per day. Exploratory (n = 252) and confirmatory (n = 252) factor analyses were conducted to determine psychometric properties of the measures. Based on theory and goodness-of-fit indices, six factors were extracted from the questionnaire: PA self-efficacy; PA barriers self-efficacy (including general, personal, and conflict); and physical and mental outcome expectations. From confirmatory factor analysis, the model demonstrated good data fit in four out of five indices: CFI = 0.99; TLI = 0.99; SRMR = 0.03; RMSEA = 0.03, 90%CI = 0.01-0.05, χ<superscript>2</superscript> = 113.14 (88), p = 0.04; including good fit by sex, age, weight status, education, and birth country. PA interventions can employ our psychometrically sound social cognitive measures. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1091367X
- Volume :
- 22
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Measurement in Physical Education & Exercise Science
- Publication Type :
- Academic Journal
- Accession number :
- 131859877
- Full Text :
- https://doi.org/10.1080/1091367X.2018.1457963