What Are the Characteristics of Mental Retardation?

The classification of mental retardation is the type division of mental retardation from the perspective of different disciplines. Generally there are: (1) classification according to the cause. (2) Classified according to IQ level and degree of adaptive behavior disorder. According to the severity of the disorder, it is generally divided into three categories: foolishness, foolishness, and idiot. The American education community is divided into: (1) those with critical intellectual retardation or learning retardation (IQ70 ~ 85). (2) Educable mental retardation (IQ50 ~ 70). There are no obvious pathological manifestations, it is not easy to find in early childhood, and it is gradually recognized after going to school. Special education that meets its specific conditions is required. (3) Trainable mental retardation (IQ30 ~ 50). Early childhood shows severe intellectual and adaptive behavioral obstacles, it is difficult to learn the most basic reading, writing, and arithmetic skills, and requires special education and training based on self-care and social skills. (4) Mental retardation that requires guardianship (below IQ25). Can only accept simple self-care skills training, without the care and supervision of others. ^[1]