Information for pair0070: data taken from R. Armann and I.Buelthoff, 2010, in preparation MPI for Biological Cybernetics, Tuebingen, Germany Discrete data: Artificial faces were shown and varied between male and female. People had to say if it is male or female. The variables are: X = par (between 0 and 14, 0 -> very female, 14 -> very male) Y = sex_guess (0: female or 1: male, the subject's guess) ground truth: X --> Y