"The ECPS poll was conducted from Monday, January 18 at 6pm through Wednesday evening January 20. The polling sample was a random selection of registered voters purchased through Aristotle Inc. Likely primary voters were classified through a screening question. For non-completes with a working residential phone line, at least five callbacks were attempted. The Democratic and GOP residential primaries consisted of 258 and 271 adult registered likely primary voters in Iowa, with a margin of error of +/-6.1% and +/-5.9%, respectively,at a 95 percent confidence level, was used for the additional statewide questions. Data was collected using an Interactive Voice Response system and weighted based on 2012 General Election voting to reflect likely voter populations in Iowa. The full methodology and results can be found at www.theecps.com For further information or questions about methodology, contact Henry Krause, ECPS polling director, at henry_krause@emerson.edu
That's why I have a call blocker on my phone line.