In Albert Ellis' Rational Emotive Therapy, a client learns how an Activating Event causes his or her emotion

What is the most common eating disorder worldwide?

A. Anorexia nervosa B. Bulimia nervosa C. Binge-eating disorder D. Purging disorder

According to the article Attachment in Separation concerning divorced or separated mothers' interactions with their children, which might be the least likely to define group membership in the participant groups of a quasi-experiment:

(a) differences in the wording of instructions for a task (b) differences in chronological age (c) differences in blood cholesterol level (d) differences in having experienced a natural disaster, such as an earthquake