Voter Autrement 2017 for the French Presidential Election

In April 2017, during the first round of the French presidential election, we performed a set of experiments on the use of voting rules. Participants to these experiments were asked to test several alternative voting methods, like approval voting, and other variants of evaluative voting. The experiments were both carried out in situ in polling stations during the first round of the presidential election (using paper ballots), and on line during the month preceding the first round, and until the second round of the election (using a web application). A total of 6358 participants took part to the in situ experiment and 37739 participants took part to the on line experiment. This paper describes the protocol of the in situ experiments and the format of the collected dataset.