| A | B |
| Interest Group | Private organization that tries to influence public policy. |
| Mandate | Instructions or commands a constituency gives to its elected officials concerning policies. |
| Mass Media | Means of communication that can reach large, widely dispersed audiences at the same time. |
| Medium | Means of transmitting information. |
| Opinion Leaders | Any person who has a big influence on what others think. |
| Peer Group | People with whom one regulary associates. |
| Public Affairs | Events and issues that concern people at large. |
| Public Agenda | Public issues on which people's attention is focused. |
| Public Opinion | Attitudes a large number of Americans have about government and politics. |
| Public Opinion Poll | A formal survey of public attitudes. |
| Quota Sample | A group chosen for polling based on proportion to percentage of population. |
| Random Sample | A group interviewed drawn in such a way as each member of population has an equal chance to be included. |
| Sample | A small number of people chosen as a representative cross-section of the total population to be surveyed. |
| Sound Bite | Short, sharply focused TV news report. |
| Straw Vote | Unscientific measurement of public opinion. |