The ADBB scale is a scale to assess social withdrawal behaviour in infants under 3 years of age. Built by A. Guedeney to help infant observation, the scale can be used aftrer training in well baby clinics, in a testing situation, for clinical or resarch use. On this site you will find the rationale for the building of the scale, applications in France and elsewhere, and reports from users. You can download the latest 2004 version of the adbb, and the manual for use, along with the lists of training centers.