“…Achenbach and Rescorla [3,9] reported that scores on syndrome scales, DSM-oriented scales, Internalizing, Externalizing, and Total problems were significantly higher for clinically referred children than for demographically matched non-referred children, after controlling for age, gender, SES, and ethnicity in US samples averaging 2,500 children. Similar findings have been found in European societies such as Denmark [10], Finland [11], Germany [12], and the Netherlands [13,14].…”