ABSTRACT
Intervention is a concept well understood in the medical literature; less well so in the context of education. It comes with an implicit reference to norms of development or health, and in the case of development it also implies a genetic programme which may not have been fully realised in the individual subject. Hence the need for some kind of medical intervention to assist the patient realise their genetic potential. The effect of an intervention is then assessed by measurements or clinical observations to see the extent to which the patient approaches the norms expected (Shayer, 1992). What then is the equivalent in the educational field of a suitable case for treatment?
