. Author manuscript; available in PMC: 2024 Sep 1.

Published in final edited form as: J Learn Disabil. 2022 Jun 5;56(5):343–358. doi: 10.1177/00222194221098719

Table 2.

Hierarchical Regressions Involving Demographic and Comorbidity Variables Predicting RCMAS Total (Shading Indicates the Variables Entered in Each Respective Block of the Analyses)

	Block 1: Demographics				Block 2: Comorbidities				Block 3: Interactions

Variable	B	SE	β	P	B	SE	β	P	B	SE	β	P

Constant	14.94	2.86		<.001	13.53	2.80		<.001	12.55	2.81		<.001
Age	−1.06	.66	−.09	.111	−1.42	.65	−.11	.029	−1.99	.67	−.16	.003
Sex	1.29	.99	.05	.192	3.13	1.01	.13	.002	3.21	1.00	.13	.001
Maternal Education	.07	.18	−.02	.706	.10	.17	.02	.567	.08	.17	.02	.651
Word Reading	−2.62	.67	−.21	<.001	−1.78	.67	−.14	.008	−5.87	3.46	−.47	.091
ADHD					3.09	.53	.24	<.001	3.04	.53	.24	<.001
Word Reading × Age									1.67	.53	.13	.002
Word Reading × Sex									−.50	.99	−.03	.613
Word Reading × Maternal Education									.29	.21	.37	.172
Word Reading × ADHD									−.20	.53	−.02	.968

N	600				599				599

R² Change	.08				.05				.02

p-value	<.001				<.001				.005

Note. ADHD = Attention-Deficit/Hyperactivity Disorder. Bolding indicates the variables entered in each respective block of the analyses.