It doesn't state in the article if this is a daily tracking poll or if this is a separate sample. But, yes - both polls share the date of 4/16 (last of the 2 days in the first poll, first of the 2 days of the second poll). Zogby seems to imply that the spread was the same over the 2 days in the second poll.
Mark, A question about these tracking polls like Gallup and Rasmussen. Do they just do a simple arithmetic mean of the relevant days e.g. Gallup adds up candidate preferences for last three days and divide by 3 or something more complicated (I read somewhere about smoothing but not sure what that means)? Thanks
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Does this overlap with the 4/15-4/16 survey from the day before ?
Posted on April 18, 2008 10:53 AM
It doesn't state in the article if this is a daily tracking poll or if this is a separate sample. But, yes - both polls share the date of 4/16 (last of the 2 days in the first poll, first of the 2 days of the second poll). Zogby seems to imply that the spread was the same over the 2 days in the second poll.
Posted on April 18, 2008 11:03 AM
Rasmussen shows similar for the 17th - Clinton 47, Obama 44. http://rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/pennsylvania/pennsylvania_democratic_presidential_primary
Posted on April 18, 2008 11:06 AM
@Uri - yes, this is part of a two-day rolling average tracking survey, so today sample does overlap.
@Thatcher - thanks!
Posted on April 18, 2008 11:28 AM
Mark, A question about these tracking polls like Gallup and Rasmussen. Do they just do a simple arithmetic mean of the relevant days e.g. Gallup adds up candidate preferences for last three days and divide by 3 or something more complicated (I read somewhere about smoothing but not sure what that means)? Thanks
Posted on April 18, 2008 11:51 AM
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