HU Jinyan, WU Mudan, DONG Lingping, WU Shuang
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Objective: To explore the relationship between impulsivity and the disordered eating behavior in college students and the effect of difficulties in emotional regulation in it.
Methods: The Barratt Impulsiveness Scale-11(BIS-11), the Dutch Eating Behavior Questionnaire (DEBQ), and the Difficulties in Emotion Regulation Scale (DERS) were administered to 560 college students. Data were analyzed using SPSS macro PROCESS to assessing the mediating effect of difficulties in emotional regulation.
Results: (1) Impulsivity was a positive predictor of emotional eating (β=0.083, t=2.008, p=0.046) and external eating (β=0.112, t=2.640, p=0.008). (2) Difficulties in emotional regulation was a positive predictor of emotional eating (β=0.254, t=6.162, p<0.001) and restrained eating (β=0.113, t=2.616, p=0.010). (3) Difficulties in emotional regulation completely mediated the relationship of impulsivity in restrained eating (R2=0.072, F=10.320, p<0.001) and emotional eating behavior (R2=0.113, F=15.658, p<0.001), and the mediating effect values were 0.133 and 0.349. Specifically, difficulties in emotion impulsivity regulation, which is a sub-dimension of emotional regulation, completely mediated the relationship between impulsivity and emotional eating. Difficulties in goal orientation partially mediated the relationship between impulsivity and external eating.
Conclusion: Impulsivity in college students can not only directly affect disordered eating behaviors, but it can also indirectly affect disordered eating behaviors through difficulties in emotional regulation.