The frequency distributions of the estimated optimal cutoff point. The frequency distributions of the optimal cutoff points estimated by the repeated search method (dotted line) and the parametric method (solid line) in 100,000 simulations of dichotomization for the same case in Figure 4 with f
~ N(0, 12), f
~ N(1.5, 22) and n
= 30. The class width for the graph is 0.02.