. Author manuscript; available in PMC: 2022 Jul 1.

Published in final edited form as: Neuropsychology. 2021 May 20;35(5):472–485. doi: 10.1037/neu0000747

Table 3a.

Classification Statistics: TOMM Trial 1 Performance for Single and Two-variable Models Predicting Simulator (SIM) and Traumatic Brain Injury (TBI) Group Membership

	Sn_Sp90	Youden J	PPP BR 40%	NPP BR 40%	PPP BR 10%	NPP BR 10%	AUC	AUC 95% CI	Χ²	Predictor p
One-Variable Models:
Trial 1 Accuracy	.46−.54	0.40	.63	.76	.23	.95	.78	[.69, .87]	29.83^***
Effort-Max	.58	0.48	.69	.79	.26	.96	.80	[.71, .88]	33.23^***
View-Familiar (Max)	.56−.58	0.50	.70	.80	.26	.96	.81	[.72, .89]	34.45^***
View-Unfamiliar (Max)	.56−.58	0.46	.67	.79	.24	.96	.80	[.72, .89]	33.97^***
Response-Familiar (Max)	.58	0.48	.69	.79	.26	.96	.80	[.71, .88]	33.74^***
Response-Unfamiliar (Max)	.60	0.50	.68	.80	.27	.96	.83	[.74, .91]	36.94^***
Effort-Baseline	.44	0.39	.61	.76	.21	.96	.77	[.68, .86]	25.50^***
View-Familiar (Baseline)	.44−.48	0.40	.62	.77	.21	.96	.80	[.70, .88]	29.84^***
View-Unfamiliar (Baseline)	.40−.44	0.39	.63	.76	.22	.95	.77	[.68, .86]	26.53^***
Response-Familiar (Baseline)	.44−.46	0.37	.60	.75	.21	.94	.77	[.68, .86]	26.21^***
Response-Unfamiliar (Baseline)	.46−.48	0.43	.61	.80	.21	.97	.79	[.70, .88]	27.78^***
Effort-Range	.33−.35	0.33	.63	.73	.21	.94	.69	[.58, .79]	15.18^***
Familiarity-Difference	.19−.21	0.19	.48	.69	.14	.93	.61	[.50, .72]	2.25
Two-Variable Models: Accuracy +
Effort-Max	.69	0.57	.73	.84	.31	.97	.88	[.82. .95]	58.90^***	< .001
View-Familiar (Max)	.71−.73	0.61	.74	.85	.33	.97	.89	[.83, .95]	60.49^***	< .001
View-Unfamiliar (Max)	.75−.77	0.59	.73	.85	.31	.97	.89	[.83, .95]	60.63^***	< .001
Response-Familiar (Max)	.69	0.57	.73	.84	.31	.97	.88	[.82, .95]	59.18^***	< .001
Response-Unfamiliar (Max)	.74	0.62	.71	.88	.30	.97	.89	[.83, .95]	54.34^***	< .001
Effort-Baseline	.78	0.63	.75	.86	.33	.97	.90	[.83, .96]	63.91^***	< .001
View-Familiar (Baseline)	.80	0.63	.75	.86	.33	.97	.89	[.83, .95]	60.00^***	< .001
View-Unfamiliar (Baseline)	.78	0.63	.75	.87	.33	.98	.89	[.82, .95]	58.92^***	< .001
Response-Familiar (Baseline)	.78	0.61	.74	.85	.33	.97	.90	[.84, .96]	64.44^***	< .001
Response-Unfamiliar (Baseline)	.78−.80	0.62	.74	.87	.32	.97	.90	[.84, .96]	56.03^***	< .001
Effort-Range	.50−.52	0.37	.62	.75	.22	.95	.79	[.71, .88]	32.87^***	.092

Note. Sn_Sp90 = Sensitivity (detection of simulated TBI) when Sp Specificity (bona fide TBI) is set at cut point ≥ .90 (range presented when cut point is associated with multiple Sn values); PPP = Positive Predictive Power, NPP = Negative Predictive Power (each presented for 40% and 10% base rate); AUC = ROC area under the curve. See Table 1 for variable abbreviation key.