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. Author manuscript; available in PMC: 2019 Apr 1.

Published in final edited form as: J Abnorm Child Psychol. 2018 Apr;46(3):639–654. doi: 10.1007/s10802-017-0324-3

Table 1.

Sample characteristics

	ASD (n=20)	HR-noASD (n=59)	LR (n=89)
Gender, male	70%	55.9%	56.2%
Ethnicity, Caucasian	80%	86.4%	88.8%
	M (SD)	M (SD)	M (SD)	F	p
Parent Education	5.61 (0.98)_a	6.01 (0.79)	6.18 (0.72)_b	4.62	.011
Age: 22 mo assessment	22.82 (0.68)	22.70 (0.73)	22.78 (0.71)	0.24	.787
Age: 28 mo assessment	28.69 (0.63)	28.68 (0.51)	28.52 (0.42)	2.24	.110
Age: 34 mo assessment	34.88 (0.88)	34.69 (0.84)	34.62 (0.61)	0.92	.402
Mullen Verbal Score	35.78 (12.95)_a	51.09 (8.32)_b	53.56 (8.50)_b	29.10	<.001
Mullen Non-verbal Score	43.68 (9.08)_b	49.68 (7.45)_b	53.57 (8.87)_c	11.24	< .001
Mullen ELC Score	79.82 (18.97)_a	101.49 (13.77)_b	107.20 (14.6)_b	24.52	<.001
ADOS severity score	5.79 (1.55)_a	1.53 (0.90)_b	1.42 (0.85)_b	167.83	<.001

Note: Means with different subscripts differ from one another at p< .05.

ASD = Autism spectrum disorder; HR-noASD = High risk toddlers without a diagnosis; LR= Low risk toddlers