Table 2

(FPR, TPR) Pairs that Maximize Each MacCAT-CA Scale's Information, Based on Data in Poythress et al.³⁶

MacCAT-CA Scale	BR	FPR	TPR	Information		Scale Score	Interpretation (Impairment Level)
MacCAT-CA Scale	BR	FPR	TPR	Bits	%max	Scale Score	Interpretation (Impairment Level)
Understanding	0.16	0.181	0.517	0.053	8.3	9	Mild
	0.30	0.204	0.548	0.081	9.2	10	Minimal
Reasoning	0.16	0.118	0.479	0.071	11.2	9	Mild
	0.30	0.140	0.514	0.106	12.0	9	Mild
Appreciation	0.16	0.040	0.407	0.105	16.5	7	Clinically significant
	0.30	0.054	0.441	0.148	16.8	8	Clinically significant

Also shown are the amounts of information yielded by each scale (both in bits and as a percentage of the information that would be obtained from a perfect test), corresponding scale scores, and the MacCAT-CA interpretations of these scores. BR = assumed base rate.