Bulimia nervosa from the highest income bracket. There are higher rates of eating disorders in groups involved in activities which idealize a slim physique, such as dance, gymnastics, modeling, cheerleading, running, acting, swimming, diving, rowing and figure skating. Bulimia is thought to be more prevalent among Caucasians; however, a more recent study showed that African-American teenage girls were 50 percent more likely than white girls to exhibit bulimic behavior, including both binging and purging. The term "bulimia" comes from Greek "boulīmia", "ravenous hunger", a compound of βοῦς "bous", "ox" and λιμός, "līmos", "hunger". Literally, the scientific name of the disorder, "bulimia nervosa",
Eating Disorder Inventory EDI as well as EDI-2, it has been enhanced to reflect more modern theories related to the diagnosis of eating disorders. It was designed for use with females ages 13–53 years. It contains 91 items divided into twelve subscales rated on a 0-4 point scoring system. 3 items are specific to eating disorders and 9 are general psychological scales that while not specific are relevant to eating disorders. It yields six composites: Eating Disorder Risk, Ineffectiveness, Interpersonal Problems, Affective Problems, Overcontrol, General Psychological Maladjustment. It is also a self-report questionnaire administered in twenty minutes. The Eating disorder symptom checklist (EDI-3SC)