ABSTRACT
With such historical differences between workers in the field of learning disabilities regarding classification, it is virtually inevitable that there should be disagreement regarding causation. Where no clear understanding exists of what constitutes a ‘person with learning disabilities’, it is difficult for a properly developed science of causation to be formed. Some would argue that since learning disabilities are socially, rather than biologically, defined, no objective science is possible in any case. To their view is added, from within the ‘scientific’ world, developments in understanding and methodology in the biological sciences, and genetics in particular, which have shown earlier pronouncements of ‘scientific fact’ in their true speculative light.
