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16-11-2021 | Original Article

Self-discrepancy as a Predictor of Eating Disorder Symptoms: Findings from Two Ecological Momentary Assessment Studies of Adults with Binge Eating

Auteurs: Tyler B. Mason, Kathryn E. Smith, Ross D. Crosby, Robert Dvorak, Scott G. Engel, Scott Crow, Stephen A. Wonderlich, Carol B. Peterson

Gepubliceerd in: Cognitive Therapy and Research | Uitgave 3/2022

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Abstract

Background

Self-discrepancy theory suggests that discrepancies between one’s actual, ideal, and ought self can generate negative affective states and are associated with psychopathology, including eating disorders (EDs). However, research thus far has only examined self-discrepancy as a trait factor and has not investigated how state self-discrepancies may precipitate ED symptoms in everyday life. To study such state-based phenomena, this paper reports on two ecological momentary assessment (EMA) studies, which elucidated momentary relations between self-discrepancy, negative affect, and their interaction as predictors of subsequent ED symptoms.

Method

Study 1 included forty women with binge-eating symptoms (Mage = 34.70 ± 15.59 years; range 19–64) who completed 10 days of EMA recordings, and Study 2 included 112 adults seeking treatment for binge-eating disorder (Mage = 39.9 ± 13.20 years; range 18–64) who completed 7 days of EMA recordings.

Results

In Study 1, greater within-subjects self-discrepancy predicted more eating-related rumination at the next EMA signal. In Study 2, there was an interaction of within-subjects self-discrepancy and negative affect predicting binge eating. When self-discrepancy was higher than one’s average, there was a stronger association with binge eating if momentary negative affect was also higher than one’s average. Higher between-subjects self-discrepancy was associated with less body satisfaction over the course of EMA in both studies and more binge eating over the course of EMA in Study 2.

Conclusions

These results underscore the role of within- and between-subjects self-discrepancy in predicting elevated behavioral and cognitive ED symptoms.
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Metagegevens
Titel
Self-discrepancy as a Predictor of Eating Disorder Symptoms: Findings from Two Ecological Momentary Assessment Studies of Adults with Binge Eating
Auteurs
Tyler B. Mason
Kathryn E. Smith
Ross D. Crosby
Robert Dvorak
Scott G. Engel
Scott Crow
Stephen A. Wonderlich
Carol B. Peterson
Publicatiedatum
16-11-2021
Uitgeverij
Springer US
Gepubliceerd in
Cognitive Therapy and Research / Uitgave 3/2022
Print ISSN: 0147-5916
Elektronisch ISSN: 1573-2819
DOI
https://doi.org/10.1007/s10608-021-10279-5

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