# Advanced Poll Voting Behavior

Advanced poll offers two default behaviors and two additional behaviors when Advanced Ranking Poll is enabled.

Approval
  Approval voting works much like the core Drupal poll with the addition of the ability to select more than one option. For instance, if a poll has five choices and a user is allowed to select three, their vote only counts once but each selection receives a fraction of that vote. For more information see Wikipedia: Approval Voting.
Pooled
  Assuming a multiple choice poll, each vote by the same user carries the same weight. As in the above example, if there are five choices and the user can select three, the results will count each selection as a separate vote.
Borda Count
  Borda count is made available by installing the Advanced Ranking Poll module. This style of voting assumes a ranked preference. For instance, if there are five candidates and the user is allowed to choose and rank their top three, the first candidate receives 5 points, the second 4 and the third 3. For more information see Wikipedia: Borda Count.
Instant-runnoff Voting
  Instant Run-off is also made available by installing the Advanced Ranking Poll module. Voters are allowed to rank their preferences with each candidate receiving more points for a higher ranking. The candidate with the highest overall ranking in a given round is declared the winner. For more information see Wikipedia: Instant-runoff Count.

## Normal Ranking Poll vs Draggable Ranking Poll

Ranking polls have two display options per behavior. Normal ranking polls allow up to the maximum number of items to be selected. The display looks like this:

The draggable version presents all available options in a single table and assumes the user will drag them into the order of preference. The display looks like this:

Note that draggable polls do not permit write-in voting as it is designed to weigh all existing choices. If write-in is selected, the setting will be ignored when the poll is rendered.