Figure 2.

Distribution density plots for the following distributions (cf. Table 2): N(−13.98, 34.10), t (−12.79, 14.55, 3.22), and ALD (−12.70, 7.67, 0.50). These are the distributions based on the estimated models reported in Table 2 for reading efficiency at the first measurement point for the average student. Left: y-axis range from 0 to 0.035 and x-axis range from −200 to 200. Right: “zoom-in” depiction of the densities to better visualize differences at the tails, i.e., y-axis range from 0 to 0.00001 and x-axis range from −200 to 200.