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Questionnaire form used by an interviewer.

The most common survey design.

Traces changes over time by repeatedly asking questions of the same individuals.

The most costly survey mode.

Traces changes over time by asking questions of independent samples of the same target population.

In this type of interview, interviewers are not supposed to deviate from question order or wording.

To study relationships among social actors, every person in the group is surveyed.

Automates data collection by prompting introductions to questions, skipping irrelevant questions, and entering data directly into a computer file.

May be used to reach different sets of respondents or to ask different types of questions.

This survey mode takes the least time but also requires the simplest questions.

Systematic measurement error associated with question wording or characteristics of respondents and interviewers.

The object is to convince persons in the sample to participate in the survey.

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