It is important for researchers to have a clear verbal description of behaviors of interest so that they can be measured accurately. This description is known as a(n)

Barbara has been prescribed a drug to calm her anxiety and induce sleep

However, over several weeks, Barbara has begun taking this prescription drug in excess. After the first couple of doses, she becomes forgetful and uninhibited and takes more and more of the drug. Her daughter finds her unconscious and calls 911. Barbara was most likely prescribed a(n) a. methamphetamine. b. barbiturate. c. hallucinogen. d. antidepressant.

Herschel is brought to the hospital by six policemen who struggle to keep him from acting violently. He has been smoking a mixture of marijuana and a particular drug. During his first several days in the hospital, Herschel is either suspicious and violent or fearful. He staggers when he walks and has slurred speech. Herschel was probably using marijuana and what other drug?

a. barbiturate c. phencyclidine b. LSD d. heroin