. Author manuscript; available in PMC: 2023 Jun 12.

Published in final edited form as: J Autism Dev Disord. 2020 May;50(5):1725–1747. doi: 10.1007/s10803-019-03930-4

Table 5.

Predictors of the Reasoning Decisional Capacity Domain in the Total Sample and by Gender

	Reasoning
	Regression in Four Steps β (95% CI)	Full Model β (95% CI)	Secondary Analysis β (95% CI)
Step 1
Gender (Female)	1.09 (0.83, 1.35)^***	0.35 (0.11, 0.58)^**	0.32 (0.09, 0.54)^**
Age	0.15 (0.03, 0.28)^*	0.12 (0.03, 0.21)^**	0.10 (0.01, 0.19)^*
Autism (Yes)	−0.18 (−0.32, −0.04)^*	−0.08 (−0.18, 0.02)	−0.05 (−0.15, 0.06)
R²	0.43
Step 2
IQ	0.26 (0.05, 0.48)^*	0.46 (0.30, 0.63)^***	0.30 (0.10, 0.50)^**
Independence	0.17 (0.02, 0.32)^*	0.27 (0.11, 0.43)^***	0.23 (0.07, 0.38)^**
Oral Comprehension	0.14 (−0.04, 0.32)
Passage Comprehension	0.19 (−0.02, 0.40)
R²	0.71
Step 3
Social Avoidance	0.04 (−0.07, 0.15)
General Anxiety	−0.01 (−0.14, 0.13)
Hyperactivity	0.03 (−0.11, 0.17)
R²	0.70
Step 4
Cognitive Flexibility	0.02 (−0.11, 0.16)
Inhibitory Control	−0.13 (−0.24, −0.02)^*	−0.13 (−0.23, −0.02)^*	−0.09 (−0.19, 0.02)
Planning & Problem Solving	−0.03 (−0.17, 0.11)
Visual Memory	0.03 (−0.07, 0.13)
Verbal Memory	0.09 (−0.06, 0.25)
Working Memory	0.10 (−0.09, 0.28)
R²	0.72
Secondary Analysis (Step 5)
Understanding			0.26 (0.08, 0.44)^**
R²		0.71	0.73

Within each step, first, interactions with gender were tested; non-significant interaction terms were removed from the step and the step was rerun. No other interactions with gender were significant at an alpha = 0.05 level (data not shown).

For all variables except for gender and autism, beta parameters represent the change in the understanding score in standard deviation units per one standard deviation increase in the predictor variable. Beta parameters for female gender and autism represent the change in the understanding score in standard deviation units among females and those with autism, respectively.

p < .05

^**

p < .01

^***

p < .001.