If you asked 100 people to choose between red and blue, 55% might answer "blue." This 55% preference for blue over red will be reinforced if several others surveys find a similar result.
But if one day a guy decides to add "green" to the questionnaire, then the numbers for "blue" as well as "red" would doubtless decrease. Would this scenario mean that blue (or red) is losing ground as a color in terms of popularity? Absolutely not.
But this is what Rasmussen wants you to believe, only instead of colors he is stretching the truth on congressional approval numbers. Such approval rating is now in the "single digits", he claims. Matt Drudge touted the new poll in his website yesterday; but by not stressing the significant difference between this and all other congressional polls conducted by other polling firms, which place the approval in the mid-20's, the careless Drudge and the conservative Rasmussen may be leading many too believe that congress has experienced a sudden, sharp, recent drop in popularity.
The truth is, however, that although Congress' approval rating is very low, it is nowhere near single digits when the usual two-question (approve or disapprove) standard is applied. In addition to "excellent", "good", and "poor", Rasmussen adds the ambiguous "fair" option to this questionnaire, which would be the equivalent of "green" in the example above.
I recommend a new Politico piece further explaining why this just-released Rasmussen poll is highly misleading.
Maybe Rasmussen's approach is more useful than the one used by other pollsters. Who knows. But he should have made all of us aware of his extremely unusual wording.
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