Reference:
Achenbach, T.M.; Rescorla, L.A. The Manual for the ASEBA School-Age Forms & Profiles; Research Center for Children, Youth, and Families: Burlington, VT, USA, 2001; ISBN 0938565737.
Name and number of scales:
internalizing (withdrawn/depressed, somatic complaints, and anxiety/depression) and externalizing problems (rule-breaking and aggressive behavior)