RAADS-14 Screen: validity of a screening tool for autism spectrum disorder in an adult psychiatric population

Table 4 Scores on the RAADS-14 Screen, differences from the autism spectrum disorders (ASD) sample, and internal consistency

Phase	n	Mean ± SD	RAADS-14 Screen score			Internal consistency, α
Phase	n	Mean ± SD	Median (range)	M-W *U (z)*^a	r ^b	F1^c	F2^d	F3^e	RAADS-14 Screen
Phase II
ASD	58	27.9 ± 11.5	30 (0–42)	–	–	0.84	0.67	0.63	0.88
ADHD	43	17.5 ± 9.5	18 (1–36)^f	596.0 (-4.5)	0.68	0.80	0.42	0.51	0.77
Other psychiatric disorders	95	11.9 ± 8.3	12 (0–39)^f	772.5 (-7.5)	0.57	0.75	0.54	0.57	0.78
Non-psychiatric controls	590	3.9 ± 4.6	3 (0–29)^f	1528 (-11.6)	0.48	0.65	0.32	0.53	0.70
Total sample	792	7.4 ± 9.3	4 (0 – 42)	–	–	0.86	0.64	0.76	0.90
Phase III
ASD	77	30.8 ± 8.6	32 (8–42)			0.75	0.62	0.62	0.80
ADHD	301	15.4 ± 9.3	15 (0–42)^f	2824 (-10.3)	0.59	0.73	0.49	0.62	0.79
Other psychiatric disorders	69	12.6 ± 9.3	11 (0–39)^f	467.5 (-8.6)	0.71	0.75	0.40	0.76	0.84
Total sample	457	17.4 ± 11.0	16 (0 – 42)	–		0.80	0.58	0.73	0.86

ISSN: 2040-2392