Early Termination During Random Slides

[cazessus]

In the attached draft questionaire, the participant is supposed to answer 12 randomized questions about influence in a social network. Each question is linked to a positive or negative feedback page, followed by a reaffirmation of the correct answer.

Unfortunately, when running the question persistently terminates early, usually after about 2-4 questions. The problem doesn't seem to be predictable either. Is there a problem with the questionaire as it stands, or is there a better way to set up the questions?

Thanks greatly.