MAXEIG procedures were used to generate a base rate estimate, this average estimate of 19% also yielded strong indicator coefficients (Table 1). Each set of taxometric analyses was run twice, first using simulated taxonic data derived from the diagnostic classifications and second using simulated taxonic data based on the average base rate estimates from MAMBAC and MAXEIG (the graphs provided in Figures 1 and 2 are from the first sets of simulated data).