@Cycloptichorn,
Cycloptichorn wrote:I think an examination of the differences between Ras' polling on Presidential approval, and that of pretty much every other pollster out there, reveals a clear bias towards Republicans in their results.
If by "clear bias" you mean that it tends to look better for Republicans than other polls that alone is pretty meaningless. That meaning of bias, which is really just a tendency towards something, is unremarkable. However you try to portray it as having the more commonly held meaning of "bias" which is to say that it is prejudiced and lacks objectivity. That may be the case but the mere tendency to favor Republicans more in their polls doesn't make it.
Quote:Whether this is caused by their methodology, bias in their questions, or their sample population favoring Republicans over other polls, is debatable; but the evidence is clear that they reliably give results farther to the right than any other pollster out there.
So what? What makes the other pollsters right and this one wrong? They aren't doing the same things. They use different methodology. You can't assail their methodology or their actual objectivity so you just assail the result and claim it must mean that something is wrong on the way to it.
Quote:Ican, Okie and Fox would pretend that this is proof that all the other pollsters are wrong, and Ras' is right; but, I'm pretty sure they have that one exactly backward.
See the big problem with your thinking is that you think that any pollster is "right" and that merely measuring one against the others will show who is wrong. That is silly, it's just like the folk who compare search engine results to Google to test for quality. If the competing search engine returns Google's results they are considered to be "accurate" but if they don't then they are considered less accurate.
What they don't get is that Google being the best search engine out there doesn't mean their results are the most "accurate". Similarly comparing polls against each other to decide which is "right" is silly. They are all wrong to some degree, and if you are going to compare it against anything to decide which is the most "right" then you should try comparing to
reality instead of other
polls.
Nate Silver has done this as well, comparing the polls to
actual results, and no Rasmussen doesn't look that bad compared to how other pollsters fare against real world results.
Nate Silver wrote:My process is to look at the average miss for each pollster across each contest they polled, and compare it to the average miss of other pollsters in those same contest, after going through a more-complicated-than-it-needs-to-be iterative process.
You can
read the rest of his post here, but the key part is:
Quote:'Error' represents the average error for the particular pollster, as compared to the 'IAE', which is the iterated average error for other pollsters in those same contests.
When compared to how other pollsters fare against reality, Rasmussen just isn't the prejudiced and biased pollster that you are portraying them as.