I am making a graph and need to know what the dependent and independent variables are so i can label my x and y axis. After reading this problem what would the titles be for the x and y axis?

Excel and SPSS Lab: Chi-Square Test for Goodness of Fit In a study on the effect of the invasion of personal space, experimenters approached pedestrians walking alone and asked them for directions. When the pedestrian started giving directions, the experimenter took a step toward him/her. An observer then noted whether the pedestrian responded to this invasion of personal space by staying where he/she was (coded as a 2), by taking a step forward (coded as a 1), or by taking a step back (coded as a 3)