[OldFriend]

For years now many of us have been convinced that Zogby adds special sauce to his polls.

In other words, he often gets the answers he wants or the people paying for the polls want.

We call that SPECIAL SAUCE

[evad]

INDEED!

1 - The demographic model that a polling outfit uses for the universe of primary voters, and thus how they sample it.

2 - The difference between registered voters and "likely" voters. If a poll uses likely voters, it needs a model to identify them (e.g., "did you vote in the last primaries?").

3 - How hard a poll leans on respondents to choose a preference.

These factors are always present, but harder to discuss because you can't look them up in a statistics textbook. Polling outfits are quite close-mouthed about these things, especially #1, so we don't know what they are doing. Zogby's Special Sauce is legendary, but only Zogby knows what it is, and everyone else has their own special sauce.