2008 Senate · TX
Scott Rasmussen (Rasmussen Reports) · fieldwork ended 2008-10-21 (14 days before the election) · 500 respondents · IVR
The poll said
Democrat 40% · Republican 55%
R+15.0
The certified result
Democrat 42.84% · Republican 54.82%
R+12.0
The arithmetic
- Poll margin = 40 − 55 = -15.00
- Actual margin = 42.838 − 54.821 = -11.983
- Signed miss = -15.00 − (-11.983) = -3.017
- Absolute miss = |-3.017| = 3.017
The poll overstated the Republican by 3.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 16757, race ID 1576 (538 database).