Individual differences in relational body image: Within-person variability predicts maladaptive trait body image

Area of Science:

• Psychology
• Body Image Research
• Eating Behavior Studies

Background:

• Previous research on within-person variability in body image and its link to maladaptive behaviors yielded mixed results.
• Limitations in past studies included a narrow focus and less robust statistical methods.

Purpose of the Study:

• To clarify the relationship between within-person variability in body image and maladaptive outcomes.
• To investigate body image variability within the relational context.
• To employ advanced statistical techniques for more reliable findings.

Main Methods:

• 189 female undergraduates completed baseline trait body image measures.
• Participants listed important social connections and reported typical body image with 10 individuals from this network.
• Multiverse analysis and permutation testing were used to examine the hypothesis across various model specifications.

Main Results:

• The study supported the hypothesis that within-person variability in relational body image positively predicts maladaptive body image indicators.
• Statistical significance (p = .006) was found across 84 regression analyses.
• However, specific results showed variation depending on the statistical models used.

Conclusions:

• Within-person variability in body image, particularly in relational contexts, is a significant predictor of maladaptive body image.
• The findings underscore the importance of considering relational dynamics in body image research.
• Methodological and statistical recommendations are provided for future studies in this area.