What people feel about issues

What people believe about public policies

The attitudes people express on political issues

What the public thinks about any subject or topic

Polls provide the public with information that is useful during elections

Polls provide candidates and campaigns relevant information about their performance

Polls provide information to policy-makers about important public policy issues

All the above

Sample populations that are not demographically stratified

Sample populations that are not randomly selected

Sample populations that do not represent the general population

All the above

Online polls

Focus groups

Scientific polls

None of the above

Apathetic bias

Alienated bias

Nonresponsive bias

Response bias