According to a paper published in the Archives of General Psychiatry "Children with autism have larger brains than children without the disorder, and the growth appears to occur before age 2." How could researchers conclude if there is a physiological difference in the brains of young children who have autism spectrum disorder? Discuss the sample and the method used in this study.

I can't discuss the sample or the method if you don't give me a link to (or a copy of) the WHOLE paper, instead of just a one-sentence quote from it.

Explanation:

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.