Table 5.

Sensitivity and specificity of the algorithm cutoffs used with the ADOS-Toddler Module

“Unique Participants” sample
12–20/NV21–30 algorithma (12–20 months & Non-verbal 21–30 months)				V21–30 algorithmb (Verbal 21–30 months)
ASD vs NS		ASD vs NS, TD		ASD vs NS		ASD vs NS, TD
(n=35)	(n=34)	(n=35)	(n=101)	(n=24)	(n=11)	(n=24)	(n=47)
Sens	Spec	Sens	Spec	Sens	Spec	Sens	Spec
91%	91%	91%	94%	88%	91%	88%	94%
“All Cases” sample
12–20/NV21–30 algorithma (12–20 months & Non-verbal 21–30 months)				V21–30 algorithmb (Verbal 21–30 months)
ASD vs NS		ASD vs NS, TD		ASD vs NS		ASD vs NS, TD
(n=87)	(n=64)	(n=87)	(n=153)	(n=59)	(n=24)	(n=59)	(n=63)
Sens	Spec	Sens	Spec	Sens	Spec	Sens	Spec
87%	86%	87%	91%	81%	83%	81%	90%

Note. ASD=autism spectrum disorder; NS=non-spectrum; TD=typically developing; Sens=Sensitivity; Spec=Specificity.

^aUsing a cutoff of 12.

^bUsing a cutoff of 10.