​ four-year-old susan has just been diagnosed with autism. research suggests that her chances of never developing speech proficiency sufficient to communicate her needs are about ____ percent. 33 25

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Are about 25 percent. Autism is a developmental disorder that affects the child's nervous system and various higher functions, among these functions is speech. This disorder is characterized by self-centered behaviors and serious problems of social interaction and communicating their needs. This disorder is more common in children and is chronic.

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