Question:
Autistic disorder is characterised by all of the following, except:
Autistic disorder is characterised by all of the following, except:
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Autism triad: social deficit, speech delay, stereotypies; vision is normal.
Updated On: Jun 24, 2026
- Visual impairment
- Lack of social interaction
- Delayed development of speech
- Stereotypic movements
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The Correct Option is A
Solution and Explanation
Step 1: Recall the triad. Autism spectrum disorder is defined by impaired social interaction, impaired communication (including delayed or abnormal speech and language), and restricted, repetitive, stereotyped behaviours or movements.
Step 2: Test each true feature. Lack of social interaction is a core deficit. Delayed development of speech is a classic communication feature. Stereotypic movements (hand flapping, rocking, spinning) are the repetitive-behaviour component.
Step 3: Test the odd one out. Visual impairment is a sensory/ophthalmological problem and is not a defining feature of autism. Children with autism have normal vision as a rule; their gaze abnormalities (poor eye contact) are social, not due to defective sight.
Step 4: Conclude. The feature that does not belong is visual impairment.
Answer: Visual impairment.
Step 2: Test each true feature. Lack of social interaction is a core deficit. Delayed development of speech is a classic communication feature. Stereotypic movements (hand flapping, rocking, spinning) are the repetitive-behaviour component.
Step 3: Test the odd one out. Visual impairment is a sensory/ophthalmological problem and is not a defining feature of autism. Children with autism have normal vision as a rule; their gaze abnormalities (poor eye contact) are social, not due to defective sight.
Step 4: Conclude. The feature that does not belong is visual impairment.
Answer: Visual impairment.
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