A Rank Exposition is a survey for audience to assess a series of expositions on a conference, seminar or students presentation. The choices is only for audiences to tell how good this exposition is, thus generating a mark for the current exposition, eg. excellent, good, bad. In this kind of survey, instead of displaying the number of votes of each choice, a list of top N expositions is displayed on the survey page (N is a number that can be set in the advanced survey creation page).
Notice: You have to login to create a Rank Expositions survey.