Simeon has no trouble reading his math book, but he can't clearly see the teacher working problems on the white board in front of the classroom. Simeon likely has __________

Piaget's concept that a given quantity of matter remains the same despite being rearranged or changed in appearance, as long as nothing is added or taken away, defines _____

a) object permanence b) irreversibility c) symbolic function d) conservation

Delusions and hallucinations are associated with

a. somatoform disorders. b. mania. c. conversion hysteria. d. schizophrenia.