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Deciding Subsample Approach. Sampling procedure and rotation pattern? Paper, telephone, web, or mixed mode? How well-organized IT-systems? How well-organized interviewer staff?. Subsample Worries. Time period Workload lumping Seasonal effects. Wave number Organizational burden
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Deciding Subsample Approach Sampling procedure and rotation pattern? Paper, telephone, web, or mixed mode? How well-organized IT-systems? How well-organized interviewer staff?
Subsample Worries Time period Workload lumping Seasonal effects Wave number Organizational burden Nonresponse effects