Sleeper effects can be reduced by reminding people that the source of a persuasive message was not credible. This supports which explanation of sleeper effects?

When it is important to show a relationship between test scores and a future behavior, researchers establish evidence of validity using what method?

a. Predictive method b. Concurrent method c. Content method d. Test-retest method

Luther operates a small nightclub that specializes in soul music and features up-and-coming African American singing groups. He actively discourages white couples from coming in and always gives them the worst seats if they insist on being admitted. Luther's behavior is best described as an example of __________.

A. prejudice B. ambiguity C. discrimination D. oppression