Table 4.

Summary of the hierarchical regression analysis for P50m latency

		Left				Right				N
		β				β
		Step 1	Step 2	Step 3	t in step 3	Step 1	Step 2	Step 3	t in step3
TD	Age (months)	−0.463*	−0.657*	−0.358	−1.380	−0.267	−0.599	−0.268	−0.982	33
	Non-verbal performance		0.248	0.307	1.302		0.423	0.488	1.972
	Riddles			−0.521*	−2.681			−0.577*	−2.823
	R	0.463	0.487	0.624		0.267	0.374	0.570
	Adjusted R2	0.214	0.237	0.389		0.071	0.140	0.325
	ΔR2	0.189	0.187	0.326		0.041	0.082	0.255
ASD	Age (months)	−0.058	−0.100	−0.122	−0.553	−0.435*	−0.503*	−0.583*	−3.092	30
	Non-verbal performance		0.192	0.162	0.677		0.308	0.199	0.974
	Riddles			0.058	0.218			0.214	0.935
	R	0.058	0.196	0.201		0.435	0.528	0.550
	Adjusted R2	0.003	0.038	0.040		0.189	0.279	0.302
	ΔR2	0.000	0.000	0.000		0.160	0.226	0.222

*p < 0.025.