2016 President · WV
Ipsos · fieldwork ended 2016-10-30 (9 days before the election) · 180 respondents · Online Panel
The poll said
Democrat 34.22% · Republican 58.04%
R+23.8
The certified result
Democrat 26.43% · Republican 68.50%
R+42.1
The arithmetic
- Poll margin = 34.22 − 58.04 = -23.82
- Actual margin = 26.426 − 68.499 = -42.073
- Signed miss = -23.82 − (-42.073) = 18.253
- Absolute miss = |18.253| = 18.253
The poll overstated the Democrat by 18.3 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 48716, race ID 651 (538 database).