What is the most universal symptom of autistic disorder?

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Quizplus · Accepted Answer

Language disturbances, such as difficulty with communication and social interaction, are the most common and universal symptoms of autistic disorder. Although other symptoms like rocking and excess responsiveness to stimuli may be present in some individuals with autism, they are not present in all cases and therefore are not as universal. Facial grimaces may also be present but are not as common or universal as language disturbances.

What Is the Most Universal Symptom of Autistic Disorder