Grace P S, Jacobson R S, Fullager C J
J Clin Psychol. 1985 Mar;41(2):173-80. doi: 10.1002/1097-4679(198503)41:2<173::aid-jclp2270410208>3.0.co;2-n.
This study compared (1) purging bulimics (those who terminate binging with self-induced vomiting and/or excessive use of laxatives), N = 26; (2) non-purging bulimics, N = 24; and (3) control subjects (in whom no eating problems were apparent), N = 24. These groups were examined empirically on several personality and demographic variables. Additionally, procedures were taken to control for the effects that being overweight may have had on the personality characteristics, which surprisingly has not been undertaken in previous research on bulimia. The comparison of the bulimics (purging and non-purging bulimics grouped together) with the controls empirically confirmed former clinical observations that have linked bulimics with low self-esteem, high anxiety, external locus of control, and a high incidence of maternal and family obesity. With regard to the comparison between the purging and non-purging bulimics, no significant differences between them appeared on any of the dimensions examined here.
（1）清除型贪食症患者（即通过自我催吐和/或过度使用泻药来终止暴饮暴食的人），共26人；（2）非清除型贪食症患者，共24人；以及（3）对照受试者（无明显饮食问题者），共24人。对这些组在若干人格和人口统计学变量方面进行了实证研究。此外，还采取了措施来控制超重可能对人格特征产生的影响，令人惊讶的是，以往关于贪食症的研究并未进行此项操作。将贪食症患者（清除型和非清除型贪食症患者合并在一起）与对照组进行比较，从经验上证实了以往的临床观察结果，即贪食症患者与自卑、高度焦虑、外部控制点以及母亲和家族肥胖的高发生率有关。至于清除型和非清除型贪食症患者之间的比较，在所研究的任何维度上均未出现显著差异。
