Table 1:

Descriptive statistics of the population.

Variable	TD Mean (95% CI)	ASD Mean (95% CI)	β (SE)	t/z-stats	p	R2
Gender (Female vs. male participants)	29 boys, 6 girls	28 boys, 4 girls	0.37 (0.7)	z-stat: 0.53	0.6	0.01
Age (months)	20.27 (19.78 20.93)	32.98 (31.03 34.74)	12.79 (0.98)	t-stat: 13.09	<0.001	0.72
MSEL-EL	Raw scores: 19.89 (18.4 21.76) Age equivalent: 20.49 (18.80 22.94)	Raw scores: 17.56 (15.29 20.3) Age equivalent: 18.56 (15.67 21.85)	−2.32 (1.53)	t-stat: −1.52	0.13	0.03
MSEL-VR	Raw scores: 26 (24.83 27.09) Age equivalent: 23.19 (21.73 24.49)	Raw scores: 26.91 (14.94 28.79) Age equivalent: 25.24 (23.34 27.78)	0.91 (1.11)	t-stat: 0.82	0.4	0.01
ADOS Mod1 – total score	0.83 (0.43 1.34)	14.12 (12.84 15.47)	13.3 (0.7)	t-stat: 18.42	<0.001	0.84
Child word tokens	252.8 (194.1 331.05)	192.25 (126.83 280.61)	−60.55 (50.01)	t-stat: −1.21	0.23	0.02
Child word types	55.09 (42.53 70.65)	51.19 (33.72 72.08)	−3.9 (11.78)	t-stat: −0.33	0.74	0.02
Child MLU	1.38 (1.3 1.46)	1.36 (1.2 1.59)	−0.02 (0.1)	t-stat: −0.19	0.85	0
Father’s education (years past 8th grade)	8.27 (7.39–9.21) range is 4–12	7.53 (6.59–8.5) range is 3–12	0.74 (0.67)	t-stat: 1.11	0.271	0.02
Mother’s education (years past 8th grade)	7.91 (7.23–8.53) range is 4–12	7.89 (6.86–8.91) range is 3–12	0.02 (0.6)	t-stat: 0.031	0.975	0

N.B. Means and 95% CI are bootstrapped with 1000 iterations.