A domain-specific approach for assessing physical activity efficacy in adolescents: from scale conception to predictive validity

Campbell, Nerissa, Gray, Casey, Foley, Louise, Maddison, Ralph and Prapavessis, Harry 2016, A domain-specific approach for assessing physical activity efficacy in adolescents: from scale conception to predictive validity, Psychology of sport and exercise, vol. 22, pp. 20-26, doi: 10.1016/j.psychsport.2015.05.002.

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Title A domain-specific approach for assessing physical activity efficacy in adolescents: from scale conception to predictive validity
Author(s) Campbell, Nerissa
Gray, Casey
Foley, Louise
Maddison, RalphORCID iD for Maddison, Ralph orcid.org/0000-0001-8564-5518
Prapavessis, Harry
Journal name Psychology of sport and exercise
Volume number 22
Start page 20
End page 26
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-01
ISSN 1469-0292
Keyword(s) scale construction
domain-specific physical activity efficacy
physical activity
Summary Objective: To develop and test the utility of a domain-specific physical activity efficacy scale in adolescents for predicting physical activity behaviour. Design: Two independent studies were conducted. Study 1 examined the psychometric properties of a newly constructed Domain-Specific Physical Activity Efficacy Questionnaire (DSPAEQ) and study 2 tested the utility of the scale for predicting leisure- and school-time physical activity. Methods: In study 1, descriptive physical activity data were used to generate scale items. The scales factor structure and internal consistency were tested in a sample of 272 adolescents. A subsequent sample of Canadian (N = 104) and New Zealand (N = 29) adolescents, was recruited in study 2 to explore the scale's predictive validity using a subjective measure of leisure- and school-time physical activity. Results: A principle axis factor analysis in study 1 revealed a 26-item, five-factor coherent and interpretable solution; representative of leisure and recreation, household, ambulatory, transportation, and school physical activity efficacy constructs, respectively. The five-factor solution explained 81% of the response variance. In study 2 the domain-specific efficacy model explained 16% and 1% of leisure- and school-time physical activity response variance, respectively, with leisure time physical activity efficacy identified as a unique and significant contributor of leisure-time physical activity. Conclusion: Study 1 provides evidence for the tenability of a five factor DSPEAQ, while study 2 shows that the DSPEAQ has utility in predicting domain-specific physical activity. This latter finding underscores the importance of scale correspondence between the behavioural elements (leisure-time physical activity) and cognitive assessment of those elements (leisure-time physical activity efficacy).
Language eng
DOI 10.1016/j.psychsport.2015.05.002
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 929999 Health not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30082403

Document type: Journal Article
Collections: Faculty of Health
School of Exercise and Nutrition Sciences
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