[3] The Eating Disorder Inventory (EDI) comprises 64 questions, divided into eight subscales.
The EDI-2 retains the original format of the EDI with the inclusion of 27 new items divided into three additional subscales: The latest revision to the Eating Disorder Inventory was released in 2004.
It contains the original items of the first version as well as EDI-2, and was also enhanced to reflect more modern theories related to the diagnosis of eating disorders.
It contains 91 items divided into twelve subscales rated on a 0-4 point scoring system.
It also includes questions specific to the behavioral patterns of someone with or at risk of developing an eating disorder.