The Achenbach System of Empirically Based Assessment (ASEBA) offers a comprehensive approach to assessing adaptive and maladapting functioning from preschool to elderly populations. It is widely used in mental health services, schools, medical settings, child and family services, public health agencies, child guidance, training, and research. This project aims to validate this psychological instrument in school-age children and adolescents (6-18 years old) population in Macao.