Which of the following statements is true about autism spectrum disorder (ASD)?
A)The symptoms of ASD have their onset between ages six and nine.
B)The best predictor of the outcome of ASD is a child's IQ and the amount of language development before age six.
C)The prevalence of ASD is not affected by socioeconomic status and parents' mental abilities.
D)The prevalence of ASD has been decreasing in recent years, probably due to increased awareness of the disorder.

Question

Quizplus · Accepted Answer

The best predictor of the outcome of ASD is a child's IQ and the amount of language development before age six. None of the other statements are correct. The symptoms of ASD typically begin to appear before age two, not between ages six and nine (A). The prevalence of ASD is affected by socioeconomic status and parental education (not mental abilities) (C). The prevalence of ASD has been increasing in recent years, not decreasing, and it is likely due to improved diagnosis and awareness (D).

Which of the Following Statements Is True About Autism Spectrum