/---- If they admitted it then you should be able to post a link. TIA.
You mean for the 50th time?
"Last week, Rasmussen offered this explanation:
When comparing Job Approval ratings between different polling firms, it's important to focus on trends rather than absolute numbers. One reason for this is that different firms ask Job Approval questions in different ways. At Rasmussen Reports, we ask if people Strongly Approve, Somewhat Approve, Somewhat Disapprove, or Strongly Disapprove of the way the President is performing his job. This approach, in the current political environment, yields results about 3-4 points higher than if we simply ask if people if they approve or disapprove (we have tested this by asking the question both ways on the same night). Presumably, this is because some people who are a bit uncomfortable saying they "Approve" are willing to say they "Somewhat Approve." It's worth noting that, with our approach, virtually nobody offers a "Not Sure" response when asked about the President."
Mystery Pollster: Rasmussen Update: A Lesson in Measurement Error