Correct Answer - Option 4 : Both (1) and (2) are true
Intellectual disability is marked by an extremely low IQ of 70 or below on a test when the mean IQ score is 100. In addition to it, the child also should have a deficit in daily adaptive behavior such as self-care skills, communicating with others, being able to live on one’s own, etc.
Intellectual disability involves problems with general mental abilities that affect functioning in two areas:
- Intellectual functioning (such as learning, problem-solving, judgment)
- Adaptive functioning (activities of daily life such as communication and independent living)
| Levels of intellectual disability |
Symptoms |
| Mild intellectual disability |
- taking longer to learn to talk, but communicating well once they know-how
- being fully independent in self-care when they get older
- having problems with reading and writing
- social immaturity
- increased difficulty with the responsibilities of marriage or parenting
- benefiting from specialized education plans
- having an IQ range of 50 to 69
|
| Moderate intellectual disability |
- are slow in understanding and using language
- may have some difficulties with communication
- can learn basic reading, writing, and counting skills
- are generally unable to live alone
- can often get around on their own to familiar places
- can take part in various types of social activities
- generally having an IQ range of 35 to 49
|
| Severe intellectual disability |
- noticeable motor impairment
- severe damage to, or abnormal development of, their central nervous system
- generally having an IQ range of 20 to 34
|
| Profound intellectual disability |
- inability to understand or comply with requests or instructions
- possible immobility
- incontinence
- very basic nonverbal communication
- inability to care for their own needs independently
- the need for constant help and supervision
- having an IQ of less than 20
|
Hence, we can conclude that 'A' has an I.Q. of 60 means 'A' has a mild intellectual disability and 'B' has an I.Q. of 30 means 'B' has a severe intellectual disability.
