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9/28: Behind the NBC News/Marist Poll

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9/28: Behind the NBC News/Marist Poll

Suffice it to say, the team at The Marist Poll is pleased to join forces with NBC News to provide independent and accurate poll data and analysis on the upcoming GOP presidential primary/caucus sweepstakes.  Through this partnership, the public will receive what Marist College students have been participating in for more than three decades, namely, a front row seat to the political process.  Marist College students learn by doing.  Now, we intend to open up the classroom to the public and demystify the process of conducting public opinion polls.

caricature of Lee MiringoffBeyond the horse race numbers of who is ahead and who is behind, we hope to provide insight into the dynamics of the race… which issues are driving the electorate, what kind of influence do Tea Party supporters have on the outcome, how does the size and composition of turnout alter each candidate’s chances?  In so doing, the public will be better positioned to understand what campaign consultants are looking at in their private polls, the ones they use to devise their strategies.

The NBC News/Marist Poll is all about disclosure and transparency.   There are polls, and then there are polls.  Some use “live” interviewers and scientific methods to select a random sample, including calling cell phone only households.  Some do not.  Some provide the public with their question wording and the order in which questions are asked.  Some do not.  Some use well trained,  quality interviewers.  Some do not.  Some disclose how they define the all important “likely” voter.  Some do not.

In essence, sometimes the public is in on the secret of how poll numbers are derived.  But, unfortunately, often the public is not.  Instead, citizens are bombarded by polls with little guide as to how the sausage is made.  No longer.  In this partnership, to paraphrase Chuck Todd, we will bring people into the polling process and “kick the tires.”

We will provide information about how samples are selected, why cell phone only households are called, how likely voters are identified, what role question wording and question order play in the survey process, what makes for good quality interviewing, and how we go about analyzing the poll results.

We fully understand that public opinion polls are graded by whether they pick the right winner and by the right margin.  But, when it comes to prediction, pre-primary/caucus polling is a particularly perilous endeavor.  Our NBC News/Marist Polls will be conducted prior to the casting of votes, and, as such, are aiming at a moving target.  With primary turnout much lower than in a general election and with an electorate which is typically late in deciding whether to vote or whom to support, things can be pretty volatile.  Not surprisingly, a great deal can happen from the time a poll is conducted to primary day.

Having said this, picking the winner (by the correct margin) and understanding what is driving the electorate remains the goal.  But, when it comes to prediction, let’s not ask psephologists to accomplish what we don’t expect from seismologists or demand from  meteorologists.  Translation: predicting public opinion may be no more dependable than timing an earthquake or forecasting the weather.  Nonetheless, we will communicate what works and what doesn’t.  Hopefully, we will all learn from the experience.

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Lee M. Miringoff is the director of the Marist College Institute for Public Opinion. Follow Lee on Twitter at @LeeMiringoff.



  1. Mary

    October 20, 2011 at 12:59 PM

    It varies based upon research objectives (who or what we are interested in understanding) and statistics (1 – incidence, that is, the proportion of the population that is part of our defined target group –e.g., resident of the state or a registered voter) and 2 – how much statistical confidence we want to have in the results). For instance, in Florida, the Republicans have what is called a closed primary, only registered Republicans are eligible to participate. So in order to find out which Republican candidate is currently doing well we need to speak with only Republicans. We start by speaking with all residents about generic state issues (2520 interviews), find out who is registered to vote (2225 registered voters) and who is a registered Republican (748 voters). We are also interested in understanding who is likely to vote so our sample size gets even smaller (524 likely voters). Survey results are estimates. We base our decision of how many interviews to start with (2520 interviews of residents) on the level on statistical confidence we are satisfied with (the results will fall within a certain range, plus or minus, a margin of error) for the smallest group of voters we are interested in (likely Republican voters, 524 interviews). So in this example we started with adults 18 years of age or older whose permanent address is in Florida (2520 margin of error +/- 2.0), identify registered voters (2225, moe +/-2.1), then registered Republicans (748, moe +/-3.6) until we get to likely Republican primary voters (524 moe +/- 4.3).

    – Mary Azzoli, Director of Interactive Media Systems, the Marist Poll

  2. Mike field

    October 19, 2011 at 9:29 AM

    What is the total sample size for atypical political poll?

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