Cassandra Yocum (2005) "Efficacy of Prenotification Letters in Improving Response Rates in the Telephone Point of Purchase Survey."

The Telephone Point of Purchase Survey is a list-assisted RDD survey with a four-quarter rotating panel design. This paper studies the effect of prenotification letters in the first of four interviews on response rates in the first quarter, as well as any residual positive benefit in subsequent interviews.

Last Modified Date: February 22, 2006