American Research Group conducted a survey of 400 Iowa likely voters between Jan 6 and Jan 10, 2016. Respondents were contacted by either Cellphone or Landline and instructed by a live operator. The results of this poll were released on Jan 11, 2016.
Results were provided for the only publicly acknowledged question.
Question 1 | PreferenceView Matchup
Generic: Presidential caucus preference:
This question was presented to 400 likely voters from Iowa who were contacted in some undisclosed fashion. The margin of sampling error is ± 5% at the 95% confidence level.
The question wording was not made public by American Research Group; instead, a generic question has been editorially submitted.