There is a commonly held misconception that advances in technology and medical science have led to a decrease in disabling conditions. Examples citied include prenatal screening for Down Syndrome and identifying the link between Spina Bifida with the mother's intake of folic acid.
International research does not support the view that disability is decreasing. There is actually strong evidence to suggest that the nature of disability is changing resulting in an increase in some disabling conditions.
ASEPA’s position paper “Disability Into the Future and the Impact On Schools” outlines the issues in this area.