Measuring Public Opinion Practice Test

Sampling frame perfection, because contacting many people ensures the sample includes all groups in correct proportions automatically.

Social desirability bias, because respondents lie about sensitive behaviors, which primarily affects demographics rather than policy preferences.

Nonresponse bias, because people who refuse or cannot be reached differ systematically from respondents, skewing results despite a large contact list.

Push polling, because low completion rates indicate the pollster used deceptive information to persuade respondents during interviews.

Random digit dialing guarantees representativeness, so differences by age and income must reflect true public opinion trends.