psephologist:
(plural: ‘psephologists‘; pronunciation: the first ‘P’ is silent, and the letters — the second ‘P’ and “h” — ‘ph’ are said with an ‘f’ sound as in “fought” — for the right pronunciation, please click here)
Sir David Edgeworth Butler CBE, FBA (born 17 October 1924) is an English social scientist and psephologist, based in Oxford.
a person who studies and so knows about elections and the way people vote in an election, i.e. how the voters choose their candidate and what candidate has more chances, why a particular candidate loses or wins, etc.;
an election analyst; an election observer,
e.g.
Most often voters upset the predictions of professional psephologists by casting their votes for a less popular candidate in general election, especially at by-election polls.
The recent election results made some psephologists and elections analysts happy because,as they predicted, a hung parliament was formed.
