data("GermanParties2009") The parties to be compared were Die Linke (socialists), Die Gr�nen
(ecologists), SPD (social democrats), CDU/CSU (conservatives), and FDP
(liberals). In addition, there was the option of abstaining from voting
(coded as none).
Participants were presented with 15 pairs of options in random order. On
each trial, their task was to choose the party they would rather vote for at
an election for the German parliament. A given participant compared each
pair in one order only, hence the NA's in ordered.pref.
In order to minimize response biases, the pairs of options were read to the
participants one at a time. Participants made their choices by crossing
either
The interviewers were Psychology Master's students who collected the data for course credits. Since they mainly interviewed people they knew, the results are not representative of the political opinions in Germany. As far as the winner of the survey (Die Gr�nen) is concerned, however, the results agree with the outcome of the election for the T�bingen voters.
The results of the election on September 27, 2009 (number of so-called Zweitstimmen in percent) were:
The voter turnout was 70.8 percent in Germany and 80.5 percent in T�bingen.
paircompdata("GermanParties2009", package = "psychotree")
summary(GermanParties2009$preference)Run the code above in your browser using DataLab