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Most panels use samples, provide poor coverage, and obtain low rates of participation. Progress in understanding burden and its impact on survey response must begin with an analysis of the concept, its dimensions, and how it is For the mail option, the residential housing unit with usable mailing addresses about 95 percent of each month s sample are sent a letter, followed four days later by a questionnaire booklet.

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that are with interviewer involvement include CASI, audio ACASI, IVR or telephone audio T-ACASI, and questionnaire SAQ. To understand how strongly such factors influence survey response and cooperation, researchers have looked into assignment observable and unobservable personal of the interviewer, and the behavior of the interviewer.

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Although it is clear from this discussion that interviewer and sample person do play a role in survey response, it is not apparent that matching those necessarily results in improved response rates.

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However, the use of paradata requires upfront investment and additional research to demonstrate when the application of paradata is effective and when it is not. The National Household Education Survey NHES program has also undertaken to transition from RDD to an ABS methodology.

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American Community Survey A Sequential Mixed-Mode Case Study The most ambitious use of a mixed-mode approach to improve survey response rates is the approach in the American Community Survey ACS.