"People with diabetes are at higher risk for certain cancers than those without the blood sugar disease, suggests a new study based on a telephone survey of nearly 400,000 adults."
A)Observational study
B)Controlled experiment

Question

Quizplus · Accepted Answer

The study mentioned is an observational study because it is based on a survey and does not involve any manipulation or control of variables by the researchers.

"People with Diabetes Are at Higher Risk for Certain Cancers