According to the Centers for Disease Control, from the late 1990s to 2008, there was a _________ increase in autism spectrum disorders in children.

Question

Quizplus · Accepted Answer

The question asks for the increase in percentage, so we need to calculate the difference between the late 1990s and 2008, and then calculate the percentage increase. According to the CDC, in the late 1990s, the prevalence of autism spectrum disorders was estimated at around 1 in 150 children. By 2008, this had increased to around 1 in 88 children, which is a difference of 62 children out of every 10,000. To calculate the percentage increase, we can do (62/150) x 100 = 41.3%, or approximately 2.9 times higher. Therefore, the correct answer is D.

According to the Centers for Disease Control, from the Late