Date of Award
2024
Degree Type
Dissertation
Degree Name
Doctor of Philosophy in Psychology
Specialization
Clinical Psychology
Department
Psychology
First Advisor
Mark Robbins
Abstract
Purpose. To assess the measurement invariance of three novel Transtheoretical Model exercise measures.
Design. Cross-sectional.
Setting. Online survey study in the United States (US).
Subjects. 748 Black and/or Hispanic US-based adults.
Measures. Demographics, exercise engagement (IPAQ-SF), Stage of Change, Decisional Balance, Self-efficacy, and Barriers to regular exercise.
Analyses. Multigroup confirmatory factor analyses with increased restraints on model parameters to assess configural (no constraints), metric (factor loadings constrained), and scalar invariance (factor loadings and item intercepts constrained) in a sequential manner.
Results. Decisional Balance demonstrated scalar invariance across binary genders and metric invariance across age, race/ethnicity, and social class. Self-efficacy demonstrated scalar invariance across age and social class and metric invariance across race/ethnicity and binary gender. Barriers failed to demonstrate configural invariance across age and social class groups. It demonstrated metric invariance across race/ethnicity and scalar invariance across binary genders.
Conclusion. The Decisional Balance and Self-efficacy measures demonstrated evidence of measurement invariance across all variables, and therefore can be used and compared across Black and Hispanic/Latinx men and women of different ages and social classes. The Barriers measure should not be used to compare across groups, as it failed to demonstrate invariance across multiple variables and demonstrated low relevance to exercise in the studied sample.
Recommended Citation
Monahan, Kathleen, "MEASUREMENT INVARIANCE OF NOVEL TRANSTHEORETICAL MODEL EXERCISE SCALES" (2024). Open Access Dissertations. Paper 1696.
https://digitalcommons.uri.edu/oa_diss/1696