In recent years, the number of children diagnosed with ASDs has increased

When designing a research study, the sample should be __________.

A. easy to find B. an answer to the scientific question C. representative of the population D. as large as possible

In autism spectrum disorder, __________ is to an increase as __________ is to a decrease.

A. white matter with short-range axons; gray matter with short-range axons B. white matter with short-range axons; white matter with long-range axons C. gray matter with long-range axons; white matter with long-range axons D. gray matter with short-range axons; white matter with long-range axons