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Radio Presurvey Bulletin,
Spring 2007
Spring 2007 Response Rate and Sample Representation Initiative
Enhanced Follow-Up Treatment Extended to Additional Markets
Effective Spring 2007, all consenting households in select additional markets will receive three follow-up calls, to thank the respondents, and to facilitate and encourage participation.
Minimum Premium Increases in Select Markets
In select markets, the minimum diary premium provided to survey respondents increases effective Spring 2007.
