No research has compared app-based surveys with polls administered via Web browsers. Our new, experimental work compares the results of these two modes.
In our surveys this summer, we added a question about mobile internet connectivity to help us capture internet users who may access the internet on mobile devices.
The mobile nature of wireless phones creates a significant problem for geographic sampling.This problem is exacerbated by the fact that the wireless-only are more geographically mobile than those with landline phones.