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SRMS Webinar: Dual Frame Theory Applied to Landline and Cell Phone Surveys
Event Dates: Tuesday November 10 - Tuesday November 10
City: Online Webinar State: International Country: Online Webinar
Event Type: Short Courses	ASA Sponsored: Yes
Description:
As the number of households that have only cell phones has increased dramatically over the past 5 years, telephone surveys have addressed this problem by sampling from both landline and cell phone numbers. One of the issues emerging from these dual frame surveys is that the theoretical foundation for these surveys largely ignores nonsampling errors. Because these errors may be large and result in biases, they must be considered in dual frame telephone surveys. This Webinar begins with a review of dual frame theory with particular attention to surveys that sample landline and cell phone numbers. It then examines the effect of nonsampling errors when surveys are conducted without considering these errors. In particular, we describe the potential effect of nonresponse and measurement error using data from surveys of landlines and cell phone numbers. We discuss both practical sample design issues such as whether to screen for cell-only households, and weighting methods to reduce the effects of the errors. The advantages and disadvantages of different sample designs and estimation methods are discussed. The examples are from actual dual frame telephone surveys.
For more info click here: www.amstat.org/sections/SRMS/webinar.html

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