“…In addition, there is the awareness of environmental ' handicaps ' or ' deficiency ' as a concomitant if not the cause of ' subnormality.' While, again, there is a danger of confusing ' deficiency ' with ' relativity ' this warns against an emphasis on schooling when the problem is ' societal ' : witness the remarkable difference in social class distribution between ESN children with and without organic defects (Williams and Gruber, 1967;. However, all this is not to detract attention from those relatively few cases (Rutter et al, 1970) who display organic deficiencies.…”