According to Piaget, the ability to understand that simply changing the appearance of an object does not change the object's nature is known as

What is one reason that the prevalence of dissociative identity disorder (DID) has been increasing?

A. Children in today's society are far more likely to experience severe trauma than they were in the past. B. DID has only recently received full acceptance by the psychiatric community, and thus professionals are now using this diagnosis. C. As of 1980, most insurance companies had to accept DID as a billable diagnosis. D. It may be that the prevalence of DID has not changed at all, but that clinicians may unknowingly encourage the emergence of new identities.

Which statement about psychopathology among children and adolescents in the United States is accurate? a. Approximately 22 percent of the children in the United States suffer from a serious emotional or behavioral problem b. About two percent of children have serious emotional or behavioral problems, and three-quarters of those children receive treatment. c. Nearly one-third of all children

and adolescents have a serious emotional or behavioral problem. d. Although there are 63 million children with behavioral problems, most of them receive treatment.