Risk Factors for Clinically Significant Importance of Shape and Weight in Adolescent Girls

School of Psychology, Flinders University, South Australia, Australia.
Journal of Abnormal Psychology (Impact Factor: 4.86). 02/2010; 119(1):206-15. DOI: 10.1037/a0017779
Source: PubMed


The objective of the current study was to conduct a longitudinal study of adolescent girls to determine how temperament, attitudes toward shape and weight, life events, and family factors might contribute to the growth of clinically significant importance of shape and weight, assessed using the Eating Disorder Examination (EDE). Time 1 data were available from 699 female twins (M age = 13.96 years) and 595 parents, and approximately 1.15 years later (Time 2) the twins completed the EDE again (M age = 15.10 years). Twins were treated as singletons in the analyses. Time 1 importance of shape and weight was a significant predictor of Time 2 lifetime disordered eating behaviors. Seven Time 1 variables were significant univariate predictors of Time 2 importance of shape and weight. In multivariate analyses, fathers' sensitivity to reward was the only significant predictor of growth of Time 2 importance of shape and weight. Some support was found for established risk factors of disordered eating risk, while the multivariate analyses highlight the importance of developing conceptualizations of eating disorder etiology beyond the individual level.

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Available from: Simon Wilksch, May 25, 2015
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    • "Two empirically validated constructs of risk exist, both of which are adopted in the current investigation. The first is importance of weight and shape, used previously in studies of adolescents to indicate risk (Boone et al., 2014; Wilksch & Wade, 2010). Importance of shape and weight, which forms part of the diagnostic criteria for both AN and BN, has been described as the " core psychopathology " of eating disorders (Cooper & Fairburn, 1993) and has been found to predict the growth of disordered eating behaviours in young adolescent girls (Wilksch & Wade, 2010). "
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    ABSTRACT: While perfectionism is widely considered to influence risk for eating disorders, results of longitudinal studies are mixed. The goal of the current study was to investigate a more complex model of how baseline perfectionism (both high personal standards and self-critical evaluative concerns) might influence change in risk status for eating disorders in young adolescent girls, through its influence on ineffectiveness. The study was conducted with 926 girls (mean age of 13 years), and involved three waves of data (baseline, 6- and 12-month follow-up). Latent growth curve modelling, incorporating the average rate at which risk changed over time, the intercept (initial status) of ineffectiveness, and baseline perfectionism, was used to explore longitudinal mediation. Personal standards was not supported as contributing to risk but results indicated that the higher mean scores on ineffectiveness over the three waves mediated the relationship between higher baseline self-critical evaluative concerns and both measures of eating disorder risk. The relationship between concern over mistakes and change in risk was small and negative. These results suggest the usefulness of interventions related to self-criticism and ineffectiveness for decreasing risk for developing an eating disorder in young adolescent girls. Copyright © 2015 Elsevier Ltd. All rights reserved.
    Behaviour Research and Therapy 02/2015; 66C. DOI:10.1016/j.brat.2015.01.007 · 3.85 Impact Factor
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    • "Accanto alle relazioni con le figure genitoriali, anche i pari rivestono un ruolo cardine nell'influenzare l'insorgenza dei disordini alimentari (Cunha et al., 2009). Soprattutto durante l'adolescenza, periodo in cui l'adolescente raggiunge una maggior consapevolezza e conoscenza di sé, i pari svolgono alcune funzioni vitali, tra cui il rafforzamento della propria autostima, la trasmissione di informazioni, il sostegno emotivo e la partecipazione alla costruzione della propria identità (Wilksch e Tracey, 2010); inoltre, le relazioni sociali sembrano fornire la sicurezza emotiva e proteggono dagli impatti provocati dalle situazioni stressanti. Schutz e Paxton (2007) hanno studiato la relazione tra la qualità delle relazioni amicali, l'insoddisfazione corporea, la dieta e i disordini alimentari nelle ragazze adolescenti. "
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    • "In regard to the first objective , a main effect for group was found for over - evaluation of shape and weight where participants in the media literacy group had significantly lower scores across the three post - intervention assessment points than those in the control group . This is a very encouraging finding given the central importance of over - evaluation in the development ( Wilksch & Wade , 2010 ) and maintenance ( Fairburn et al . , 1993 ) of eating disorders . "
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    ABSTRACT: The objective of this study was to explore two aspects not investigated in a 2.5-year controlled evaluation of an 8-lesson media literacy program. First, the impact of the program on over-evaluation of shape and weight. Second, an examination of the program effects by participant baseline risk of developing an eating disorder. Grade 8 students (N = 540, mean age = 13.62 years) were assessed at baseline, post-program, 6-month, and 2.5-year follow-up. Controlling for baseline observations, linear mixed model analyses revealed a main effect for group, favouring media literacy, and a group × risk interaction, where high-risk media literacy participants had significantly lower over-evaluation scores than high-risk control participants. Both high-risk media literacy girls and boys, and low-risk media literacy girls scored significantly lower at 2.5-year follow-up than controls. Media literacy can have a lasting, beneficial impact in reducing the core cognitive component of eating disorders in both high- and low-risk young adolescents.
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