The purpose of this section hatch within one research station has better insight into the participation of different groups (based on racial criteria, socio-economic status (SES) and disability (the gender dimension is increasingly taken transverse)) in education; the stocktaking on participation of the school-age children in the various education types, shapes and levels and to determine which factors facilitate this participation or hinder, and this through the possibilities and limitations of (administrative) databases and analytical review of existing research.