. Author manuscript; available in PMC: 2025 Aug 25.

Published in final edited form as: J Atten Disord. 2023 Feb 17;27(11):1207–1222. doi: 10.1177/10870547231154905

Table 1.

Descriptive Statistics and Bivariate Correlations Between Study Variables and Parent-Reported Activity Involvement.

Variable	1	2	3	4	5	6	7	8	9	10	11	12	13

1. Income	—	−.224^**	−.172^**	−.196^**	−.271^**	−.232^**	.207^**	.278^**	−.011	.103	.067	.020	.048
2. SR ADHD-IN		—	.722^**	.681^**	.540^**	.356^**	−.258^**	−.201^**	.028	.053	.067	.030	−.112
3. SR ADHD-HI			—	.654^**	.410^**	.429^**	−.223^**	−.179^**	.049	.023	.088	.051	−.100
4. SR CDS				—	.333^**	.190^**	−.211^**	−.188^**	.082	.005	.073	.047	−.135^*
5. PR ADHD-IN					—	.610^**	−.241^**	−.159^**	−.033	−.046	.051	−.068	−.148^**
6. PR ADHD-HI						—	−.204^**	−.087	−.070	−.066	.013	−.023	−.148^*
7. School sports (freq)							—	.105	−.166^**	−.106	−.081	.032	.073
8. Community sports (freq.)								—	−.118^*	−.076	.015	.036	.148^*
9. School arts (freq)									—	.158^**	−.050	.065	−.006
10. Community arts (freq)										—	.083	−.020	.057
11. Clubs (freq)											—	.015	.191^**
12. Religious group (freq)												—	.181^**
13. Volunteer work (freq)													—

		2	3	4	5	6	7	8	9	10	11	12	13

M	4.24	1.044	0.892	0.878	1.130	0.538	2.18	1.90	1.20	0.48	0.36	1.01	0.321
SD	1.82	0.564	0.548	0.585	0.845	0.580	2.633	2.119	2.108	1.241	0.974	1.460	0.773

Note. Income is an ordinal variable ranging from 0 to 6. SR = self-report; ADHD = attention-deficit/hyperactivity disorder; ADHD-IN = ADHD inattentive symptoms; ADHD-HI = ADHD hyperactive/impulsive symptoms; CDS = cognitive disengagement syndrome; PR = parent-re port; Freq. = frequency.

p < .05.

^**

p < .01.