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Psychometric properties of the brief loss of control over eating scale (LOCES-B) in early adolescents

Research paper by Anna Vannucci MS, Christine McCauley Ohannessian PhD

Indexed on: 28 Feb '18Published on: 22 Feb '18Published in: International Journal of Eating Disorders



Abstract

The purpose of this study was to evaluate the psychometric properties of the brief loss of control over eating scale (LOCES-B) in a community sample of adolescents.Participants were 1,116 adolescents (11–15 years; 53% girls; 53% non-Hispanic White) recruited from middle schools in the Northeast United States. Participants were administered self-report surveys during school in the fall of 2016.Confirmatory factor analyses indicated that the LOCES-B total score was unidimensional, which was invariant across gender and weight status. The LOCES-B had excellent internal consistency (α = .92). The LOCES-B total score had large, positive relationships with the frequency of LOC eating episodes, objective bulimic episodes, and subjective bulimic episodes, and a small, positive relationship with objective overeating episode frequency. After adjusting for demographics, anthropometrics, and LOC eating frequency, adolescents reporting higher scores on the LOCES-B total score had greater body image dissatisfaction, more internalizing symptoms, and lower trait effortful control.Findings suggested that the LOCES-B is a reliable and valid measure of LOC eating in early adolescents. The availability of the LOCES-B has the potential to elucidate the developmental trajectories, predictors, and outcomes of LOC eating across the full severity spectrum in large cohort studies of youth.