Over the course of several decades, telephone survey response rates have declined consistently in the U.S. This decline is partly attributable to the increasing percentage of cellphone users and changes in how people interact with their devices. During this same period, the percentage of nuisance and marketing calls to cellphone users has also increased. …
In 2017, the American Association for Public Opinion Research commissioned a report, which Gallup contributed to, called Spam Flagging and Call Blocking and Its Impact on Survey Research. The comprehensive report describes these applications, their impact on survey research efforts and potential solutions.
Here are five important findings from the report: CONT.
Stephanie Marken, Gallup