What are 'overvotes' and 'undervotes'?

What are 'overvotes' and 'undervotes'?

Thea Brodkin (Voter Service Chair) gives expert video advice on: How do votes get counted after an election?; Are the counts accurate?; What are 'overvotes' and 'undervotes'? and more...

Over Votes are very common, it will say on the ballets ‘Vote for one of the following', and you're voting for one. Some people will vote for two, that's an Over Vote. Sometimes it will say ‘Vote for three' and they'll vote for four. So in lots of local elections there will be the top three candidates will win out of twelve, and you have to vote for those three candidate, but people get confused and they'll vote for more than three, and that's an Over Vote. Under Vote is when you miss an election and you really wanted to vote but somehow you bypass it say and you didn't see it. Lots of Under Votes are purposeful, I Under Vote; if I don't want to vote for something I just leave it blank, and that's an Under Vote. So their not necessary wrong, but it's an Under Vote because you missed something can you should have a chance to go back and change that.