2014 House · GA-12
Landmark Communications · fieldwork ended 2014-10-30 (5 days before the election) · 500 respondents · IVR
The poll said
Democrat 44.4% · Republican 48.1%
R+3.7
The certified result
Democrat 45.25% · Republican 54.75%
R+9.5
The arithmetic
- Poll margin = 44.4 − 48.1 = -3.70
- Actual margin = 45.247 − 54.753 = -9.506
- Signed miss = -3.70 − (-9.506) = 5.806
- Absolute miss = |5.806| = 5.806
The poll overstated the Democrat by 5.8 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 35979, race ID 5457 (538 database).