Public opinion
The sum of individual attitudes about government, policies, and issues
Focus group
A small group of individuals assembled for a conversation about specific issues
Scientific poll
A representative poll of randomly selected respondents either a statistically significant sample size, using neutral language
Sample
A group of individuals from a larger population used to measure public opinion
Random selection
A method of choosing all poll respondents in a way that does not over- or underrepresent any group of the population
Representative sample
A sample that reflects the demographics of the population
Weighting
A procedure in which the survey is adjusted according to the demographics of the larger population
Sampling error
The margin of error in a poll, which usually is calculated to plus is minus three percentage points
Mass survey
A survey designed to measure the opinions of the population, usually consisting of 1,500 responses
Entrance survey
A poll conducted of people coming to an event
Exit poll
A survey conducted outside a polling place in which individuals are asked who or what they just voted for and why
Benchmark poll
A survey taken at the beginning of a political campaign in order to gauge support for a candidate and determine which issues are important to voters
Tracking poll
A survey determining the level of support for a candidate or an issue throughout a campaign
Random digit dialing
The use of telephone numbers randomly generated by computer to select potential survey respondents
Question order
The sequencing of questions in public opinion polls
Question wording
The phrasing of a question in a public opinion poll