A study by Pickup et al. (2010) explores potential explanations for the polling miss and contrast the results of
various polling companies to see whether telephone or internet polls fared better and whether specific polling methodologies (such as adjusting for likelihood to vote) resulted in better predictions.
The 2017 survey — which
polled 63,000 hotel guests in the U.S. and Canada — also found that use of a hotel
company's app both for booking and for
various tasks at the property leads to higher guest satisfaction.