Scales Observation Systematics are a good evaluation tool in the field of Early Stimulation for the detection and assessment of the difficulties that may have children in their early years. Drs. Cambrodí and Sastre articulated this work, individual application, for developmental assessment between 0 and 3 years evolutionary.

Designed to evaluate infants and children with special educational needs, the Scales of Observation Systematics remain today a very useful tool for assessing the development of all children from birth to 3 years and for psychoeducational assessment of subjects (0 instrument to 3 years) presenting risks or delays regarding their chronological age.