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Updated: Jul 17, 2026
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A Computer-Based Platform for Aiding Clinicians in Eating Disorder Analysis and Diagnosis
Published on: May 10, 2022
Longitudinal associations between externalizing behavior and dysfunctional eating attitudes and behaviors: a
Naomi R Marmorstein1, Kristin M von Ranson, William G Iacono
1Department of Psychology, Rutgers University, 311 N. Fifth Street, Camden, NJ 08102, USA. marmorst@camden.rutgers.edu
Summary
Externalizing behaviors in girls predict later eating disorder risks, including weight preoccupation and body dissatisfaction. Conversely, unhealthy eating behaviors can also increase externalizing behaviors over time.
Area of Science:
- Psychology
- Developmental Psychology
- Eating Disorder Research
Background:
- Externalizing behaviors and disordered eating are significant public health concerns.
- Longitudinal data on the interplay between these behaviors in adolescent girls is limited.
Purpose of the Study:
- To examine the longitudinal associations between externalizing behavior and dysfunctional eating attitudes/behaviors in adolescent girls.
- To determine if externalizing behavior predicts later eating disorder risk factors.
- To investigate the bidirectional relationship between these behavioral domains.
Main Methods:
- Longitudinal study using data from the Minnesota Twin Family Study.
- Participants were girls assessed at ages 11, 14, and 17.
- Statistical analyses included cross-sectional correlations and mixed-model analyses.
Main Results:
- The association between externalizing behavior and disordered eating strengthened with age.
- Early externalizing behavior predicted increases in weight preoccupation, body dissatisfaction, and compensatory behaviors.
- Early compensatory behavior use predicted increases in externalizing behavior, suggesting a bidirectional relationship.
Conclusions:
- Externalizing behaviors are a significant predictor of future disordered eating symptoms in adolescent girls.
- A reciprocal relationship exists between externalizing behaviors and disordered eating, highlighting the need for integrated interventions.
- Early identification and intervention for externalizing behaviors may mitigate risks for developing eating disorders.
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