Department of Psychology, University of Denver, Denver, CO 80208, USA.
Psychol Assess. 2010 Dec;22(4):788-97. doi: 10.1037/a0020132.
Although the latent structure of various eating disorders has been explored in previous studies, no published studies have examined the latent structure of theoretically relevant variables that have been shown to cut across eating disorder diagnoses. The current study examined 3 such variables (dietary restraint, body dissatisfaction, and drive for thinness) among undergraduate women using the taxometric method. The 5 items from the Eating Disorders Examination Questionnaire's Dietary Restraint subscale were used as dietary restraint indicators, whereas items from the Eating Disorders Inventory Body Dissatisfaction and Drive for Thinness subscales were used as indicators of body dissatisfaction and drive for thinness, respectively. As hypothesized, MAXCOV (maximum covariance) and MAMBAC (mean above minus below a cut) analyses suggested that all 3 variables are dimensional; therefore, individuals with high levels of reported dietary restraint, body dissatisfaction, and drive for thinness appear to differ in degree, but not in kind, from those with lower levels. Implications for prevention, assessment, classification, and treatment are discussed.
虽然先前的研究已经探讨了各种饮食失调症的潜在结构，但没有发表的研究探讨过那些被证明贯穿于各种饮食失调症诊断的理论相关变量的潜在结构。本研究使用分类分析法，对本科女性的 3 个此类变量（饮食限制、身体不满和瘦身欲望）进行了研究。饮食限制子量表的饮食限制部分的 5 个项目被用作饮食限制指标，而饮食失调问卷身体不满和瘦身欲望子量表的项目则分别被用作身体不满和瘦身欲望的指标。正如假设的那样，MAXCOV（最大协方差）和 MAMBAC（平均值高于低于分割点）分析表明，所有 3 个变量都是维度性的；因此，报告的饮食限制、身体不满和瘦身欲望程度较高的个体与程度较低的个体在程度上有所不同，但在本质上没有区别。讨论了预防、评估、分类和治疗的意义。
