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Originally Posted by brattpowered
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Yup, how many times have I told folks do not react to Zogby even if you like his results.
That would be easier to decide if you could buy polls the way you buy canned food or cereal, with all the ingredients disclosed on a label. But pollsters don't package their products that way. Consequently, most of us believe, mistakenly, that a poll is a simple tabulation of a random sample of voters. In reality, polls are full of additives and preservatives, subtractions and selective multiplications, none of which are generally published. The reason many polls consistently differ from others is that their hidden ingredients differ. Here's a guide to those ingredients, poll by poll.
I just posted a couple of very good links on polling samples and differences between pollsters in the Oct 31 polling thread.