This revision improves an instrument already viewed as the gold standard for the observational assessment of autism. With updated protocols, revised algorithms, a new Comparison Score, and a new Toddler Module, the ADOS-2 provides a highly accurate picture of current symptoms unaffected by language. The ADOS-2 can be used to evaluate almost anyone suspected of having autism from 1-year-olds who do not consistently use phrase speech to adults who are verbally fluent.
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