Mental handicap, and mental retardation are terms previously used but now have been replaced.
In line with NICE's guideline on challenging behaviour and learning disabilities, a learning disability is defined as meeting 3core criteria:
A person's learning disability may be described as mild, moderate, severe or profound. Learning disabilities are different from specific learning difficulties such as dyslexia, which do not affect intellectual ability.
Last edited 01/2021 and last reviewed 01/2021