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

Published in final edited form as: Autism Res. 2018 Jan 7;11(4):636–644. doi: 10.1002/aur.1916

Table 4.

Hierarchical Regressions with Anxiety and ASD Variables Predicting IU (n = 73)

	Model 1			Model 2			Model 3			Model 4

	B (SE (B))	P	Δ R²	B (SE (B))	P	Δ R²	B (SE (B))	P	Δ R²	B (SE (B))	P	Δ R²

Step 1			.04			.04			.04			.04
Age	0.23 (0.64)	0.72		0.71 (0.60)	0.24		0.12 (0.63)	0.85		0.13(0.70)	0.85
Gender	−0.80 (2.91)	0.78		−0.80 (2.73)	0.77		−1.54 (2.60)	0.55		−1.76(2.54)	0.49
VCI	0.08 (0.07)	0.27		0.04 (0.07)	0.55		0.02 (0.06)	0.69		0.06(0.07)	0.41

Step 2			.38^**			.38^**			.38^**			.38^**
SCARED-P	0.51 (0.11)	<0.001		0.48 (0.14)	0.003		0.44 (0.10)	<0.001		0.38 (0.13)	0.003

Step 3			.09^**			.09^**			.18^**
BRIEF EC	–	–		–	–		0.47 (0.08)	<0.001		0.38 (0.10)	<0.001	.18^**
RBS	–	–		0.27 (0.09)	0.002		–	–		0.12 (0.69)	0.18	.02
SCI	0.25 (0.08)	0.001		–	–		–	–		0.05 (0.09)	0.56	.002

Note.

p < .05,

^**

p ≤ .001

SCARED-P: Screen for Child Anxiety and Related Disorders-Parent Report; RBS-R: Repetitive Behavior Scale - Revised; SRS-2 SCI: Social Responsiveness Scale, Second Edition Social Communication Index; BRIEF EC: Behavior Rating Inventory of Executive Function (BRIEF) Emotion Control.