Who does face-to-face campaigning mobilize?

Do get-out-the-vote (GOTV) drives mobilize voters in all elections or just in high stakes elections?
 
Background
 
Many campaigns use GOTV drives with face-to-face campaigning to increase turnout among people who consistently do not vote.  To test whether or not face-to-face campaigning mobilizes nonvoters researchers only looked at citizens who typically do not vote when analyzing 11 field experiments.
 
Results

• Face-to-face campaigning is better at getting people who usually vote to vote compared to nonvoters in small elections.
• Face-to-face campaigning is better at getting nonvoters to vote in prominent elections rather than small elections.
• Campaigns should pay attention to who they want to get to the polls and the type of elections they are campaigning for.

 
Link to Study