2018 Washington 10th CD Straw Poll
Counted (which advocates for Score voting) held a straw poll in the 10th Congressional District of Washington on June 30, 2018, with 34 voters.
Ballots included three voting systems: Plurality/FPTP, Approval, and Score (0-5), so that voter behavior on the different types of ballots could be compared.
They published analyses of voter behavior: