Korean Clinical Psychology Association

Current Issue

Korean Journal of Clinical Psychology - Vol. 40 , No. 1

[ Original Article ]
Korean Journal of Clinical PsychologyVol. 40, No. 1, pp.29-42
Abbreviation: KJCP
ISSN: 1229-0335 (Print) 2733-4538 (Online)
Print publication date 28 Feb 2021
Received 03 Aug 2020 Revised 02 Dec 2020 Accepted 03 Dec 2020
DOI: https://doi.org/10.15842/kjcp.2021.40.1.003

Moderating Role of Thin-ideal Internalization in the Relationship between Negative Affect and Eating: An Ecological Momentary Assessment Study
Juyoung Jeon ; Soo Hyun Park
Department of Psychology, Yonsei University, Seoul, Korea

Correspondence to : Soo Hyun Park, Department of Psychology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, Korea; E-mail: parksoohyun@yonsei.ac.kr
The authors have no known conflict of interest to disclose.This article has been produced as part of the first author’s master thesis under the supervision of the second author.

© 2021 Korean Clinical Psychology Association


Eating has been regarded as a regulatory behavior in coping with negative affect. However, individual differences in the relationship between negative affect and eating behavior remain relatively unexplored. This study aims to investigate this association while examining the role of potential moderators, namely thin-ideal internalization and impulse control difficulties using ecological momentary assessment (EMA) methodology. Female participants (N=72) aged 18 to 29 years completed a 7-day EMA protocol and questionnaires. Daily EMA measures included negative affect (NA) and caloric intake. Hierarchical linear modeling was applied to analyze the data. NA did not significantly predict caloric intake at the within-person level. However, the non-significant association between NA and caloric intake was negatively moderated by thin-ideal internalization on the between-person level. The moderating role of impulse control difficulties was not significant. These findings extend prior research on risk factors of emotional undereating and they highlight the importance of further research. The limitations of this study and suggestions for future research have been discussed.

Keywords: ecological momentary assessment (EMA), negative affect, eating behavior, thin-ideal internalization, emotional undereating

Author contributions statement

JYJ, graduate student in the Department of Psychology of Yonsei University, designed the study, conducted data collection and analysis, and drafted the manuscript. SHP, associate professor in the Department of Psychology of Yonsei University, supervised the research design, data collection and analysis process. All authors provided critical feedback, participated in the revision of the manuscript and approved the final submission.

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