Case studies do not use statistical adjustments to facilitate comparison.
They are uncomfortable with the kind of statistical adjustments used to compensate for missed or refused calls.
So why not use science - statistical adjustments - to put them back in?
New York and a coalition of other big cities had sued to force the statistical adjustment.
That fall, the department announced it had decided to rule out a statistical adjustment.
Including through a statistical adjustment, some argued, would help Democrats.
The figure was 5.5 percent before statistical adjustment for last summer's drought.
For the new analysis, the researchers removed a control group of nearly 500 health-care workers and made other statistical adjustments.
As for statistical adjustment, he said, "This Administration may have to reverse its position."
Was there a better way to make statistical adjustments?