智力发育障碍，重度

定义

重度智力发育障碍是指起源于发育期的一种情况，其特征是智力功能和适应性行为明显低于平均水平，根据适当的规范化、单独管理的标准化测试，或当标准化测试不可用时，通过可比较的行为指标，低于平均水平约四个或更多的标准差（低于约0.003百分位数）。受影响者的语言和学习能力非常有限。他们还可能有运动障碍，通常需要在有监督的环境中获得日常支持以获得充分的照顾，但也可能通过强化训练获得基本的自理技能。由于现有的标准化智力测试不能可靠或有效地区分智力功能低于0.0030%的个体，所以严重和深度智力发展障碍只能根据适应性行为差异来区分。

A severe disorder of intellectual development is a condition originating during the developmental period characterised by significantly below average intellectual functioning and adaptive behaviour that are approximately four or more standard deviations below the mean (less than approximately the 0.003rd percentile), based on appropriately normed, individually administered standardized tests or by comparable behavioural indicators when standardized testing is unavailable. Affected persons exhibit very limited language and capacity for acquisition of academic skills. They may also have motor impairments and typically require daily support in a supervised environment for adequate care, but may acquire basic self-care skills with intensive training. Severe and profound disorders of intellectual development are differentiated exclusively on the basis of adaptive behaviour differences because existing standardized tests of intelligence cannot reliably or validly distinguish among individuals with intellectual functioning below the 0.003rd percentile.

索引词 可用于检索该条目的同义词与别名

• 智力发育障碍，重度
• 重度精神发育迟滞的行为障碍
• 重度精神残障
• 重度精神发育迟滞