Does the use of ranked ballot voting improve voter turnout?

Minneapolis (Minnesota), St. Paul (Minnesota), Cambridge (Massachusetts), and Takoma Park (Maryland) all experienced higher voter turnout after implementing ranked ballots for their elections.  Both Oakland (California) and Santa Fe (New Mexico) implemented ranked ballot voting for mayoral contests and saw higher voter turnout.

For more information, see Drew Penrose, The Facts of Ranked Choice Voting: Voters Like It, High Turnouts are Trending (12 June 2008).

A study of the 2005 San Francisco city-wide election found that ranked ballot voting “increased voter turnout citywide by 2.7 times, and in the city’s most racially and socio-economically diverse neighborhoods turnout quadrupled.”