A new national poll shows a potential spike in young people voting in this year’s midterm elections.

Thirty-seven percent of people under the age of 30 say they will definitely vote in November’s election. That’s up from 23 percent who said the same in 2014, the last midterm cycle.

The data comes from the Harvard Kennedy School’s Institute for Politics – which Indiana University political scientist Marjorie Hershey says has been good at predicting turnout.

“Now that being said, saying that you’re going to vote six months from now is quite a bit different from actually going to the polls,” Hershey says.

Hershey says getting young people to vote is usually the result of someone else’s influence.

“That somebody else might be a turnout campaign, it might be a friend or neighbor, it might be a canvasser coming door-to-door,” Hershey says.

Hershey says just getting young people registered is key – and 96 percent of those in the poll who say they’re definitely going to vote are already registered.