Linda is afraid of cats because when she was a little girl, a cat scared her by jumping out of her closet and onto her face. Which model of abnormality offers the best explanation of Linda's fear?

Harlow's research with monkeys raised with two types of artificial mothers found that when frightened, infant monkeys went to the artifical mother that

a. provided food b. did not provide food c. was made of cloth d. was made of wire

Which statement below is true of drug addiction?

a. Withdrawal symptoms and tolerance are the result of compensatory mechanisms. b. The withdrawal symptoms that occur in heroin addicts are less dangerous than those that occur in alcoholics. c. Withdrawal symptoms are usually less intense versions of the drug effect. d. Drug addiction is caused by physical dependence. e. Cocaine addiction is the result of physical dependence.