Chunk #1 — Methods and Materials — Participants

Source: Neuropsychological functioning and severity of ADHD in early childhood: a four-year cross-lagged study.
Embedded: yes

Text

The BL sample [M (SD) age = 4.31 (0.47) years; 72.7% boys] was ethnically and racially diverse: White (N=126; 58.3%), Black (N=27, 12.5%), Asian (N=23; 10.6%), and mixed race (N=40, 18.6%); 68 (31.5%) were Hispanic.