The idea of a "hidden observer" part of the mind was suggested by

Shortly after starting a new type of medication, Charlene's family noticed that her level of activity slowed down, she often seemed dazed, and her speech became slurred. Charlene is most likely showing symptoms of

a. delirium. b. psychosis. c. depression. d. dementia.

Which of the following seeks to identify whether an association or relationship exists between two factors?

a. operationalization c. observation b. correlational research d. operant conditioning