A formal assessment by an appropriately qualified professional is required to diagnose intellectual disability. An assessment of the person's living skills may also be required.
Non-specific categories can be assigned of ‘mild’, ‘moderate’, ‘severe’ and ‘profound’ intellectual disability, as defined on the basis of IQ stores, but needs are dependent on individual factors, and each person must be treated as an individual.
Such categories do not take into account factors including personality, presence of other disabilities and social support, which all play an important role in how people function in their day-to-day life.
Intellectual disability cannot be cured, but support can help people with intellectual disability to achieve their potential and lead happy, fulfilling lives.