Table 5.

Diagnostic validity—ADOS vs. consensus diagnosis

		Sensitivity (%)	Specifity (%)	PPV (%)	NPV (%)
Autism vs. ASD/no
M2 (n = 16)	Rater 1	100.0	93.3	50.0	100.0
	Rater 2	100.0	93.3	50.0	100.0
M3 (n = 32)	Rater 1	100.0	100.0	100.0	100.0
	Rater 2	100.0	100.0	100.0	100.0
Total M1-M3 (n = 56)	Rater 1	100.0	96.0	75.0	100.0
	Rater 2	100.0	100.0	100.0	100.0
Autism/ASD vs. no
M2 (n = 16)	Rater 1	100.0	100.0	100.0	100.0
	Rater 2	100.0	92.9	66.7	100.0
M3 (n = 32)	Rater 1	100.0	92.9	66.7	100.0
	Rater 2	100.0	92.9	66.7	100.0
Total M1-M3 (n = 56)	Rater 1	100.0	91.5	69.2	100.0
	Rater 2	100.0	93.6	75.0	100.0

PPV positive predictive value, NPV negative predictive value