In Country X' s last election, the Reform Party beat its main opponent, the Conservative Party, although pollsters, employing in-person interviews shortly before the vote, had projected a Conservative Party victory  Afterwards, the pollsters determined that, unlike Conservative Party supporters, Reform Party supporters were less likely to express their party preference during in-person interviews than they were during telephone interviews
Ttherefore, using only telephone interviews instead would likely result in more accurate projections for the next election
The number of voters in Country X's next election will be significantly larger than the number of voters in the last election.