Evaluating Public Opinion Data - AP Government and Politics

Representative sample. This ensures the sample mirrors the larger population's characteristics.

To ensure each member of the population has an equal chance of being selected. Randomization eliminates bias and makes results generalizable.

Sampling error. It's the natural variation between sample and population values.

An unofficial ballot conducted as a test of opinion. It's an informal survey with no scientific methodology.

Question wording can bias responses and affect results. Leading or unclear language skews respondent answers.

Selection bias. Occurs when the sample doesn't match population demographics.

A poll designed to influence respondents through loaded questions. It aims to sway opinion rather than measure it.

A poll repeated periodically to measure changes in opinion. Shows trends and opinion shifts over time periods.

They provide immediate data on election day voter behavior. Captures actual voter choices rather than intentions.

Increase sample size for more precise results. Larger samples reduce margin of error significantly.

Respondents provide socially acceptable answers rather than truthful ones. People give answers they think are socially acceptable.

Increasing the sample size of a particular group to ensure representation. Used to capture minority viewpoints in analysis.

Bias introduced when respondents differ from non-respondents. Those who respond may differ systematically from non-respondents.

Opinion distribution. Shows how opinions spread across different response categories.

Higher likelihood of misunderstanding questions. No interviewer present to clarify confusing questions.

A non-random sample reflecting specific characteristics of the population. Uses predetermined quotas rather than random selection.

The percentage of contacted individuals who complete the survey. Higher rates indicate more representative results.

To categorize respondents and analyze subgroup differences. Enables comparison of opinions across different groups.

A small group discussion to explore opinions on specific topics. Provides qualitative insights into opinion formation.

Opinion cleavages. Reveals predictable opinion gaps between demographic groups.

A question that prompts a particular response. Subtly guides respondents toward a specific answer.

Consistent administration of questions. Standardization reduces variability in responses.

A question with only two possible responses. Forces respondents into either/or choices only.

Adjusting results to reflect the population more accurately. Corrects for demographic imbalances in the sample.

Greater dispersion of responses, indicating less consensus. Wide opinion spread shows divided public sentiment.

Tendency for respondents to agree with statements as presented. People tend to say 'yes' to avoid conflict.

A list of individuals from which a sample is drawn. The complete list of potential survey participants.

To identify and rectify unclear or biased questions. Tests prevent problematic questions from reaching final survey.

Potential for non-random sampling and self-selection bias. Participants choose themselves, creating unrepresentative samples.