Psychometric Assessment of a Weight Management Social Provisions Survey in a Sample of Adults with Prediabetes

Abstract

Background: The relevance of social support for weight management is not well documented in people with prediabetes. An important consideration is the adequate assessment of social provisions related to weight management in this population.Purpose: To assess the factor structure and measurement invariance of an adapted Social Provisions Scale specific to weight management (SPS-WM) in adults with prediabetes (n=599).Methods: Participants of a diabetes prevention trial completed a demographic survey, and the SPS-WM. Confirmatory analyses tested the factor structure of the SPS-WM, and measurement invariance was assessed for gender, weight status, education level, and age.Results: Removal of two collinear items resulted in acceptable model fit, supporting six correlated factors for social provisions specific to weight management. Measurement invariance was supported across all subgroups.Conclusion: Results support score interpretations for these scales reflecting distinct components of social support specific to weight management in alignment with those of the original survey.