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Conference presentation
Psychometric validation of a supportive accountability measure (SAM) in technology mediated treatment seeking obese adults
American Public Health Association Annual Meeting and Exposition (Virtual, 10/24/2020–10/28/2020)
10/26/2020
Abstract
Background: Technology-mediated interventions have poor long-term adherence. Supportive accountability (social support and monitoring of goal achievement) may improve outcomes in technology-mediated interventions. However, no validated tool has been developed to measure supportive accountability.
Objective: To develop and psychometrically validate a supportive accountability measure (SAM) within the context of technology-mediated obesity treatments.
Methods: SAM was developed to reflect social support (10-items) and accountability (10-items). SAM was included in two technology-mediated obesity treatment studies. Study 1 (n = 353) reviewed SAM’s reliability, criterion validity and construct validity using exploratory factor analysis. Study 2 (n = 80) reviewed construct validity by comparing SAM between intervention groups 1) traditional self-monitoring tools (SC), 2) technology-based self-monitoring tools (TECH), or 3) technology tools plus phone-based support (TECH+PHONE). It was hypothesized that SAM scores would be highest in TECH+PHONE.
Results: SAM showed strong reliability in Studies 1 and 2 (α = .92 and .95). Factor analysis revealed a 3-factor solution (support for healthy eating, support for exercise, and accountability). SAM was also correlated with measures of social motivation and social pressure (P’s <.001), demonstrating convergent validity. In Study 2, the TECH+PHONE group reported significantly higher SAM scores compared to SC and TECH. Higher SAM scores were associated with better adherence to weight management behaviors. The association between SAM scores and weight loss was in the expected direction but not statistically significant.
Conclusion: SAM has strong reliability and validity. Future studies may consider using the SAM to better understand how supportive accountability impacts treatment adherence and outcomes.
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Details
- Title
- Psychometric validation of a supportive accountability measure (SAM) in technology mediated treatment seeking obese adults
- Resource Type
- Conference presentation
- Conference
- American Public Health Association Annual Meeting and Exposition (Virtual, 10/24/2020–10/28/2020)
- Identifiers
- 99380467295206600
- Academic Unit
- Public Health; Usha Kundu, MD College of Health
- Language
- English