Attrition
Unit nonresponse is a problem for any type of survey; however, unit nonresponse in panel studies can be a more severe problem than in cross-sectional studies. Like cross-sectional studies, panel studies are subject to nonresponse at the initial wave. In addition, attrition—which is unit nonresponse after the initial wave of data collection—can occur at each subsequent wave.
A framework for understanding attrition in panel studies divides the participation process into three conditional steps: (1) location, (2) contact given location, and (3) cooperation given contact; this process cycle is repeated at each wave. Attrition thus occurs because of a failure to relocate or recontact an eligible sample unit after the initial wave of data collection, and because of noncooperation (i.e. a refusal to participate again in ...
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Reader's Guide
Ethical Issues In Survey Research
Measurement - Interviewer
Measurement - Mode
Measurement - Questionnaire
Measurement - Respondent
Measurement - Miscellaneous
Nonresponse - Item-Level
Nonresponse - Outcome Codes And Rates
Nonresponse - Unit-Level
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Operations - In-Person Surveys
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Operations - Mall Surveys
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Political And Election Polling
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Sampling, Coverage, And Weighting
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