A pigeon learns to peck only at a red disk. It will not peck at an identical disk of any other color. This illustrates the concept of _______

What is the most obvious problem during the beginning stages of dementia?

a. chorea b. delirium c. retrograde amnesia d. anterograde amnesia

As Molly looks at the grade scored in her final exams, she thinks, "I did well on this exam, because my roommate helped me study." Molly's thoughts suggest that she has ________

a. conscientiousness. b. a tendency to exert primary control. c. an internal locus of control. d. an external locus of control.