To illustrate the difference between male and female development in the trajectory plots, three different visual representations are employed in Figure 1: in the top row the values are plotted to compare the trajectories themselves; in the middle row the relative values are plotted to compare the shapes of the trajectories without regard to levels of value; in the bottom row the rates of change of the trajectories are plotted to explicitly represent the size of the changes in the trajectories. This figure is explained in more detail in Section 3.1 of Chorlian et al. (2015).
