Table 7.

Psychometric Properties of Six Possible Solutions.

		Mapping	Sens	Spec	PPV	NPV
Solution I		Barton:	.84	.55	.79	.63
		Huerta1:	.86	.41	.75	.59
A: Threshold: 12	A: 3/3 criteria
B: Threshold: 1	B: 2/4 criteria
Solution II		Barton:	.77	.94	.96	.66
		Huerta:	.72	.94	.96	.62
A: Threshold: ROC3	A: 3/3 criteria
B: Threshold: 1	B: 2/4 criteria
Solution III		Barton:	.85	.82	.91	.72
		Huerta:	.85	.83	.91	.72
A: Threshold: ROC	A: 2/3 criteria
B: Threshold: 1	B: 2/4 criteria
Solution IV		Barton:	.81	.91	.95	.70
		Huerta:	.76	.91	.95	.65
A: Threshold: ROC	A: 3/3 criteria
B: Threshold: ROC	B: 1/4 criteria
Solution V		Barton:	.89	.77	.89	.77
		Huerta:	.89	.79	.90	.77
A: Threshold: ROC	A: 2/3 criteria
B: Threshold: ROC	B: 1/4 criteria
Solution VI		Barton:	.93	.74	.88	.84
		Huerta:	.93	.78	.89	.84
A: Threshold: ROC	A: 2/3 criteria
B: Threshold: 1	B: 1/4 criteria

¹Huerta et al. (2012) mappings were contrasted with those determined by the current authors, in order to evaluate two sets of expert mappings of ADI-R and ADOS symptoms.

²Threshold of 1 point on any ADI-R or ADOS item that maps on to this symptom is sufficient for endorsement; Per communication with Cathy Lord.

³ROC-defined cutoffs were determined by examining the distribution of the sum of ADI-R and ADOS items that contributed to each DSM-5 criterion, and identifying the cut score that balanced sensitivity and specificity (Domain A: highest score that maintained a sensitivity of .90; Domain B: lowest score that maintained specificity of .50 or higher; see Tables 4-5).