Amar's parents have been talking to him about the negative aspects of drugs ever since he was a youngster. Now that he is a teenager, he knows that some of his friends smoke marijuana. At a party one night, a friend offers Amar a joint. Amar declines the offer, stating that he hates drugs. Which method of attitude formation is involved here?
◦ direct contact
◦ direct instruction
◦ interaction with others
◦ vicarious conditioning